Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms
Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Boutheina Oueslati [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2017 |
|---|
| Schlagwörter: |
|---|
| Systematik: |
|
|---|
| Übergeordnetes Werk: |
Enthalten in: Journal of climate - Boston, Mass. [u.a.] : AMS, 1988, 30(2017), 9, Seite 3095 |
|---|---|
| Übergeordnetes Werk: |
volume:30 ; year:2017 ; number:9 ; pages:3095 |
| Links: |
|---|
| Katalog-ID: |
OLC199508266X |
|---|
| LEADER | 01000caa a2200265 4500 | ||
|---|---|---|---|
| 001 | OLC199508266X | ||
| 003 | DE-627 | ||
| 005 | 20220221061857.0 | ||
| 007 | tu | ||
| 008 | 170721s2017 xx ||||| 00| ||eng c | ||
| 028 | 5 | 2 | |a PQ20170721 |
| 035 | |a (DE-627)OLC199508266X | ||
| 035 | |a (DE-599)GBVOLC199508266X | ||
| 035 | |a (PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00 | ||
| 035 | |a (KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 082 | 0 | 4 | |a 550 |q DE-600 |
| 084 | |a UA 4548 |q AVZ |2 rvk | ||
| 084 | |a 38.82 |2 bkl | ||
| 100 | 0 | |a Boutheina Oueslati |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms |
| 264 | 1 | |c 2017 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 520 | |a Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. | ||
| 650 | 4 | |a Weather | |
| 650 | 4 | |a Climate change | |
| 650 | 4 | |a Temperature | |
| 650 | 4 | |a Water vapour | |
| 650 | 4 | |a Studies | |
| 650 | 4 | |a Spring | |
| 650 | 4 | |a Seasonal comparisons | |
| 650 | 4 | |a Heat | |
| 650 | 4 | |a El Nino | |
| 650 | 4 | |a Global warming | |
| 650 | 4 | |a Atmospheric fronts | |
| 650 | 4 | |a Trends | |
| 650 | 4 | |a El Nino phenomena | |
| 650 | 4 | |a Coasts | |
| 700 | 0 | |a Benjamin Pohl |4 oth | |
| 700 | 0 | |a Vincent Moron |4 oth | |
| 700 | 0 | |a Sandra Rome |4 oth | |
| 700 | 0 | |a Serge Janicot |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of climate |d Boston, Mass. [u.a.] : AMS, 1988 |g 30(2017), 9, Seite 3095 |w (DE-627)129622311 |w (DE-600)246750-1 |w (DE-576)018141331 |x 0894-8755 |7 nnns |
| 773 | 1 | 8 | |g volume:30 |g year:2017 |g number:9 |g pages:3095 |
| 856 | 4 | 2 | |u https://search.proquest.com/docview/1887145206 |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a SYSFLAG_A | ||
| 912 | |a GBV_OLC | ||
| 912 | |a SSG-OLC-GEO | ||
| 912 | |a SSG-OLC-FOR | ||
| 912 | |a SSG-OPC-GGO | ||
| 912 | |a GBV_ILN_62 | ||
| 912 | |a GBV_ILN_154 | ||
| 912 | |a GBV_ILN_601 | ||
| 912 | |a GBV_ILN_2010 | ||
| 912 | |a GBV_ILN_2012 | ||
| 936 | r | v | |a UA 4548 |
| 936 | b | k | |a 38.82 |q AVZ |
| 951 | |a AR | ||
| 952 | |d 30 |j 2017 |e 9 |h 3095 | ||
| author_variant |
b o bo |
|---|---|
| matchkey_str |
article:08948755:2017----::hrceiainfetaeiteaeadsoitd |
| hierarchy_sort_str |
2017 |
| bklnumber |
38.82 |
| publishDate |
2017 |
| allfields |
PQ20170721 (DE-627)OLC199508266X (DE-599)GBVOLC199508266X (PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00 (KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Boutheina Oueslati verfasserin aut Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. Weather Climate change Temperature Water vapour Studies Spring Seasonal comparisons Heat El Nino Global warming Atmospheric fronts Trends El Nino phenomena Coasts Benjamin Pohl oth Vincent Moron oth Sandra Rome oth Serge Janicot oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 9, Seite 3095 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:9 pages:3095 https://search.proquest.com/docview/1887145206 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 9 3095 |
| spelling |
PQ20170721 (DE-627)OLC199508266X (DE-599)GBVOLC199508266X (PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00 (KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Boutheina Oueslati verfasserin aut Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. Weather Climate change Temperature Water vapour Studies Spring Seasonal comparisons Heat El Nino Global warming Atmospheric fronts Trends El Nino phenomena Coasts Benjamin Pohl oth Vincent Moron oth Sandra Rome oth Serge Janicot oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 9, Seite 3095 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:9 pages:3095 https://search.proquest.com/docview/1887145206 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 9 3095 |
| allfields_unstemmed |
PQ20170721 (DE-627)OLC199508266X (DE-599)GBVOLC199508266X (PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00 (KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Boutheina Oueslati verfasserin aut Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. Weather Climate change Temperature Water vapour Studies Spring Seasonal comparisons Heat El Nino Global warming Atmospheric fronts Trends El Nino phenomena Coasts Benjamin Pohl oth Vincent Moron oth Sandra Rome oth Serge Janicot oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 9, Seite 3095 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:9 pages:3095 https://search.proquest.com/docview/1887145206 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 9 3095 |
| allfieldsGer |
PQ20170721 (DE-627)OLC199508266X (DE-599)GBVOLC199508266X (PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00 (KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Boutheina Oueslati verfasserin aut Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. Weather Climate change Temperature Water vapour Studies Spring Seasonal comparisons Heat El Nino Global warming Atmospheric fronts Trends El Nino phenomena Coasts Benjamin Pohl oth Vincent Moron oth Sandra Rome oth Serge Janicot oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 9, Seite 3095 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:9 pages:3095 https://search.proquest.com/docview/1887145206 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 9 3095 |
| allfieldsSound |
PQ20170721 (DE-627)OLC199508266X (DE-599)GBVOLC199508266X (PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00 (KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Boutheina Oueslati verfasserin aut Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. Weather Climate change Temperature Water vapour Studies Spring Seasonal comparisons Heat El Nino Global warming Atmospheric fronts Trends El Nino phenomena Coasts Benjamin Pohl oth Vincent Moron oth Sandra Rome oth Serge Janicot oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 9, Seite 3095 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:9 pages:3095 https://search.proquest.com/docview/1887145206 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 9 3095 |
| language |
English |
| source |
Enthalten in Journal of climate 30(2017), 9, Seite 3095 volume:30 year:2017 number:9 pages:3095 |
| sourceStr |
Enthalten in Journal of climate 30(2017), 9, Seite 3095 volume:30 year:2017 number:9 pages:3095 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| topic_facet |
Weather Climate change Temperature Water vapour Studies Spring Seasonal comparisons Heat El Nino Global warming Atmospheric fronts Trends El Nino phenomena Coasts |
| dewey-raw |
550 |
| isfreeaccess_bool |
false |
| container_title |
Journal of climate |
| authorswithroles_txt_mv |
Boutheina Oueslati @@aut@@ Benjamin Pohl @@oth@@ Vincent Moron @@oth@@ Sandra Rome @@oth@@ Serge Janicot @@oth@@ |
| publishDateDaySort_date |
2017-01-01T00:00:00Z |
| hierarchy_top_id |
129622311 |
| dewey-sort |
3550 |
| id |
OLC199508266X |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC199508266X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220221061857.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">170721s2017 xx ||||| 00| ||eng c</controlfield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20170721</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC199508266X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC199508266X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">550</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">UA 4548</subfield><subfield code="q">AVZ</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.82</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Boutheina Oueslati</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2017</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Weather</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Climate change</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Temperature</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Water vapour</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Studies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Spring</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Seasonal comparisons</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Heat</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">El Nino</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Global warming</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Atmospheric fronts</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Trends</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">El Nino phenomena</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coasts</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Benjamin Pohl</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Vincent Moron</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Sandra Rome</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Serge Janicot</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Journal of climate</subfield><subfield code="d">Boston, Mass. [u.a.] : AMS, 1988</subfield><subfield code="g">30(2017), 9, Seite 3095</subfield><subfield code="w">(DE-627)129622311</subfield><subfield code="w">(DE-600)246750-1</subfield><subfield code="w">(DE-576)018141331</subfield><subfield code="x">0894-8755</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:30</subfield><subfield code="g">year:2017</subfield><subfield code="g">number:9</subfield><subfield code="g">pages:3095</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://search.proquest.com/docview/1887145206</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-GEO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-FOR</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_154</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_601</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2010</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2012</subfield></datafield><datafield tag="936" ind1="r" ind2="v"><subfield code="a">UA 4548</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.82</subfield><subfield code="q">AVZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">30</subfield><subfield code="j">2017</subfield><subfield code="e">9</subfield><subfield code="h">3095</subfield></datafield></record></collection>
|
| author |
Boutheina Oueslati |
| spellingShingle |
Boutheina Oueslati ddc 550 rvk UA 4548 bkl 38.82 misc Weather misc Climate change misc Temperature misc Water vapour misc Studies misc Spring misc Seasonal comparisons misc Heat misc El Nino misc Global warming misc Atmospheric fronts misc Trends misc El Nino phenomena misc Coasts Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms |
| authorStr |
Boutheina Oueslati |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)129622311 |
| format |
Article |
| dewey-ones |
550 - Earth sciences |
| delete_txt_mv |
keep |
| author_role |
aut |
| collection |
OLC |
| remote_str |
false |
| illustrated |
Not Illustrated |
| issn |
0894-8755 |
| topic_title |
550 DE-600 UA 4548 AVZ rvk 38.82 bkl Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms Weather Climate change Temperature Water vapour Studies Spring Seasonal comparisons Heat El Nino Global warming Atmospheric fronts Trends El Nino phenomena Coasts |
| topic |
ddc 550 rvk UA 4548 bkl 38.82 misc Weather misc Climate change misc Temperature misc Water vapour misc Studies misc Spring misc Seasonal comparisons misc Heat misc El Nino misc Global warming misc Atmospheric fronts misc Trends misc El Nino phenomena misc Coasts |
| topic_unstemmed |
ddc 550 rvk UA 4548 bkl 38.82 misc Weather misc Climate change misc Temperature misc Water vapour misc Studies misc Spring misc Seasonal comparisons misc Heat misc El Nino misc Global warming misc Atmospheric fronts misc Trends misc El Nino phenomena misc Coasts |
| topic_browse |
ddc 550 rvk UA 4548 bkl 38.82 misc Weather misc Climate change misc Temperature misc Water vapour misc Studies misc Spring misc Seasonal comparisons misc Heat misc El Nino misc Global warming misc Atmospheric fronts misc Trends misc El Nino phenomena misc Coasts |
| format_facet |
Aufsätze Gedruckte Aufsätze |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
nc |
| author2_variant |
b p bp v m vm s r sr s j sj |
| hierarchy_parent_title |
Journal of climate |
| hierarchy_parent_id |
129622311 |
| dewey-tens |
550 - Earth sciences & geology |
| hierarchy_top_title |
Journal of climate |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 |
| title |
Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms |
| ctrlnum |
(DE-627)OLC199508266X (DE-599)GBVOLC199508266X (PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00 (KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated |
| title_full |
Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms |
| author_sort |
Boutheina Oueslati |
| journal |
Journal of climate |
| journalStr |
Journal of climate |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
500 - Science |
| recordtype |
marc |
| publishDateSort |
2017 |
| contenttype_str_mv |
txt |
| container_start_page |
3095 |
| author_browse |
Boutheina Oueslati |
| container_volume |
30 |
| class |
550 DE-600 UA 4548 AVZ rvk 38.82 bkl |
| format_se |
Aufsätze |
| author-letter |
Boutheina Oueslati |
| dewey-full |
550 |
| title_sort |
characterization of heat waves in the sahel and associated physical mechanisms |
| title_auth |
Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms |
| abstract |
Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. |
| abstractGer |
Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. |
| abstract_unstemmed |
Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback. |
| collection_details |
GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 |
| container_issue |
9 |
| title_short |
Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms |
| url |
https://search.proquest.com/docview/1887145206 |
| remote_bool |
false |
| author2 |
Benjamin Pohl Vincent Moron Sandra Rome Serge Janicot |
| author2Str |
Benjamin Pohl Vincent Moron Sandra Rome Serge Janicot |
| ppnlink |
129622311 |
| mediatype_str_mv |
n |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth oth oth oth |
| up_date |
2024-07-03T20:23:50.291Z |
| _version_ |
1803590807369809921 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC199508266X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220221061857.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">170721s2017 xx ||||| 00| ||eng c</controlfield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20170721</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC199508266X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC199508266X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)p932-e2c6991162b109ca626029aeee079e714182e54ad8ef850f4f549da923fe27b00</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0166131020170000030000903095characterizationofheatwavesinthesahelandassociated</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">550</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">UA 4548</subfield><subfield code="q">AVZ</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.82</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Boutheina Oueslati</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2017</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Great effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This is particularly true in West Africa, and especially in the Sahel, where temperatures recurrently reach critical values, such as during the 2010 HW event in the western Sahel. This work aims at characterizing the Sahelian HWs during boreal spring seasons (April-May-June) and understanding the mechanisms associated with such extreme events. Over the last three decades, Sahelian HWs have been becoming more frequent, lasting longer, covering larger areas, and reaching higher intensities. The physical mechanisms associated with HWs are examined to assess the respective roles of atmospheric dynamics and radiative and turbulent fluxes by analyzing the surface energy budget. Results suggest that the greenhouse effect of water vapor is the main driver of HWs in the western Sahel, increasing minimum temperatures by enhanced downward longwave radiation. Atmospheric circulation plays an important role in sustaining these warm anomalies by advecting moisture from the Atlantic Ocean and the Guinean coasts into the Sahel. Maximum temperature anomalies are mostly explained by increased downward shortwave radiation due to a reduction in cloud cover. Interannual variability of HWs is affected by the delayed impact of El Niño-Southern Oscillation (ENSO), with anomalous temperature warming following warm ENSO events, resulting from an amplified water vapor feedback.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Weather</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Climate change</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Temperature</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Water vapour</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Studies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Spring</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Seasonal comparisons</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Heat</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">El Nino</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Global warming</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Atmospheric fronts</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Trends</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">El Nino phenomena</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coasts</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Benjamin Pohl</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Vincent Moron</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Sandra Rome</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Serge Janicot</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Journal of climate</subfield><subfield code="d">Boston, Mass. [u.a.] : AMS, 1988</subfield><subfield code="g">30(2017), 9, Seite 3095</subfield><subfield code="w">(DE-627)129622311</subfield><subfield code="w">(DE-600)246750-1</subfield><subfield code="w">(DE-576)018141331</subfield><subfield code="x">0894-8755</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:30</subfield><subfield code="g">year:2017</subfield><subfield code="g">number:9</subfield><subfield code="g">pages:3095</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://search.proquest.com/docview/1887145206</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-GEO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-FOR</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_154</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_601</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2010</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2012</subfield></datafield><datafield tag="936" ind1="r" ind2="v"><subfield code="a">UA 4548</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.82</subfield><subfield code="q">AVZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">30</subfield><subfield code="j">2017</subfield><subfield code="e">9</subfield><subfield code="h">3095</subfield></datafield></record></collection>
|
| score |
7.400032 |