Long term changes in the ionosphere over Indian low latitudes: Impact of greenhouse gases
Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term io...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Sharma, Som [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Schlagwörter: |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: List of Referees - 2014, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:128 ; year:2015 ; pages:24-32 ; extent:9 |
| Links: |
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| DOI / URN: |
10.1016/j.jastp.2015.03.002 |
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| 520 | |a Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. | ||
| 520 | |a Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. | ||
| 650 | 7 | |a Long term changes |2 Elsevier | |
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10.1016/j.jastp.2015.03.002 doi GBVA2015002000021.pica (DE-627)ELV034353399 (ELSEVIER)S1364-6826(15)00044-9 DE-627 ger DE-627 rakwb eng 530 530 DE-600 520 VZ 620 VZ 610 570 VZ 44.89 bkl Sharma, Som verfasserin aut Long term changes in the ionosphere over Indian low latitudes: Impact of greenhouse gases 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Long term changes Elsevier Greenhouse gases Elsevier Ionosphere Elsevier Chandra, H. oth Beig, G. oth Enthalten in Elsevier Science List of Referees 2014 Amsterdam [u.a.] (DE-627)ELV017414210 volume:128 year:2015 pages:24-32 extent:9 https://doi.org/10.1016/j.jastp.2015.03.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_63 GBV_ILN_70 44.89 Endokrinologie VZ AR 128 2015 24-32 9 045F 530 |
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10.1016/j.jastp.2015.03.002 doi GBVA2015002000021.pica (DE-627)ELV034353399 (ELSEVIER)S1364-6826(15)00044-9 DE-627 ger DE-627 rakwb eng 530 530 DE-600 520 VZ 620 VZ 610 570 VZ 44.89 bkl Sharma, Som verfasserin aut Long term changes in the ionosphere over Indian low latitudes: Impact of greenhouse gases 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Long term changes Elsevier Greenhouse gases Elsevier Ionosphere Elsevier Chandra, H. oth Beig, G. oth Enthalten in Elsevier Science List of Referees 2014 Amsterdam [u.a.] (DE-627)ELV017414210 volume:128 year:2015 pages:24-32 extent:9 https://doi.org/10.1016/j.jastp.2015.03.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_63 GBV_ILN_70 44.89 Endokrinologie VZ AR 128 2015 24-32 9 045F 530 |
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10.1016/j.jastp.2015.03.002 doi GBVA2015002000021.pica (DE-627)ELV034353399 (ELSEVIER)S1364-6826(15)00044-9 DE-627 ger DE-627 rakwb eng 530 530 DE-600 520 VZ 620 VZ 610 570 VZ 44.89 bkl Sharma, Som verfasserin aut Long term changes in the ionosphere over Indian low latitudes: Impact of greenhouse gases 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Long term changes Elsevier Greenhouse gases Elsevier Ionosphere Elsevier Chandra, H. oth Beig, G. oth Enthalten in Elsevier Science List of Referees 2014 Amsterdam [u.a.] (DE-627)ELV017414210 volume:128 year:2015 pages:24-32 extent:9 https://doi.org/10.1016/j.jastp.2015.03.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_63 GBV_ILN_70 44.89 Endokrinologie VZ AR 128 2015 24-32 9 045F 530 |
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10.1016/j.jastp.2015.03.002 doi GBVA2015002000021.pica (DE-627)ELV034353399 (ELSEVIER)S1364-6826(15)00044-9 DE-627 ger DE-627 rakwb eng 530 530 DE-600 520 VZ 620 VZ 610 570 VZ 44.89 bkl Sharma, Som verfasserin aut Long term changes in the ionosphere over Indian low latitudes: Impact of greenhouse gases 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Long term changes Elsevier Greenhouse gases Elsevier Ionosphere Elsevier Chandra, H. oth Beig, G. oth Enthalten in Elsevier Science List of Referees 2014 Amsterdam [u.a.] (DE-627)ELV017414210 volume:128 year:2015 pages:24-32 extent:9 https://doi.org/10.1016/j.jastp.2015.03.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_63 GBV_ILN_70 44.89 Endokrinologie VZ AR 128 2015 24-32 9 045F 530 |
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10.1016/j.jastp.2015.03.002 doi GBVA2015002000021.pica (DE-627)ELV034353399 (ELSEVIER)S1364-6826(15)00044-9 DE-627 ger DE-627 rakwb eng 530 530 DE-600 520 VZ 620 VZ 610 570 VZ 44.89 bkl Sharma, Som verfasserin aut Long term changes in the ionosphere over Indian low latitudes: Impact of greenhouse gases 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. Long term changes Elsevier Greenhouse gases Elsevier Ionosphere Elsevier Chandra, H. oth Beig, G. oth Enthalten in Elsevier Science List of Referees 2014 Amsterdam [u.a.] (DE-627)ELV017414210 volume:128 year:2015 pages:24-32 extent:9 https://doi.org/10.1016/j.jastp.2015.03.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_63 GBV_ILN_70 44.89 Endokrinologie VZ AR 128 2015 24-32 9 045F 530 |
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Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. |
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Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. |
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Increased concentration of greenhouse gases due to anthropogenic activities warm the troposphere and have a cooling effect in the middle and upper atmosphere. Ionospheric densities and heights are affected due to cooling. Carbon dioxide is one of the most dominant gases for the cause of long term ionospheric trends along with other radiatively active greenhouse gases. Regular ionospheric soundings are made over Ahmedabad (23.1°N, 72.7°E), since 1953. Long term changes in the ionosphere as a consequence of the cooling of the mesosphere and thermosphere due to the increased concentration of greenhouse gases have been studied. Ionospheric observations over Ahmedabad, a low latitude station in the anomaly crest region, for the years 1955–2003 are examined to study the long term changes in the critical frequencies of the various ionospheric layers and the height of the maximum ionization as characterized by hPF2. A decrease in foF2 (1.9MHz for midday, 1.4MHz for midnight) and hPF2 (18km for midday, 17km for midnight) during about five decades are noted. An increase is noted in foF1 (0.4MHz). The foF2 data are also examined over an equatorial station Kodaikanal (10.2°N, 77.5°E), situated near the magnetic equator for the years 1960–1995 and a decrease of 0.5MHz for midday and 0.7MHz for midnight are noted in ~35 years. |
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