A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models
Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. Th...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Fund, F. [verfasserIn] Morel, L. [verfasserIn] Mocquet, A. [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|
| Erschienen: |
Walter de Gruyter GmbH & Co. KG ; 2011 |
|---|
| Schlagwörter: |
|---|
| Anmerkung: |
© de Gruyter 2011 |
|---|---|
| Umfang: |
10 |
| Reproduktion: |
Walter de Gruyter Online Zeitschriften |
|---|---|
| Übergeordnetes Werk: |
Enthalten in: Journal of applied geodesy - Berlin [u.a.] : de Gruyter, 2007, 5(2011), 2 vom: 06. Juni, Seite 71-80 |
| Übergeordnetes Werk: |
volume:5 ; year:2011 ; number:2 ; day:06 ; month:06 ; pages:71-80 ; extent:10 |
| Links: |
|---|
| DOI / URN: |
10.1515/jag.2011.006 |
|---|
| Katalog-ID: |
NLEJ247064092 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLEJ247064092 | ||
| 003 | DE-627 | ||
| 005 | 20220820025845.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 220814s2011 xx |||||o 00| ||und c | ||
| 024 | 7 | |a 10.1515/jag.2011.006 |2 doi | |
| 028 | 5 | 2 | |a artikel_Grundlieferung.pp |
| 035 | |a (DE-627)NLEJ247064092 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 100 | 1 | |a Fund, F. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models |
| 264 | 1 | |b Walter de Gruyter GmbH & Co. KG |c 2011 | |
| 300 | |a 10 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a © de Gruyter 2011 | ||
| 520 | |a Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. | ||
| 533 | |f Walter de Gruyter Online Zeitschriften | ||
| 650 | 4 | |a Troposphere | |
| 650 | 4 | |a Zenith Hydrostatic Delays | |
| 650 | 4 | |a IERS conventions | |
| 700 | 1 | |a Morel, L. |e verfasserin |4 aut | |
| 700 | 1 | |a Mocquet, A. |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of applied geodesy |d Berlin [u.a.] : de Gruyter, 2007 |g 5(2011), 2 vom: 06. Juni, Seite 71-80 |w (DE-627)NLEJ248235923 |w (DE-600)2248811-X |x 1862-9024 |7 nnns |
| 773 | 1 | 8 | |g volume:5 |g year:2011 |g number:2 |g day:06 |g month:06 |g pages:71-80 |g extent:10 |
| 856 | 4 | 0 | |u https://doi.org/10.1515/jag.2011.006 |z Deutschlandweit zugänglich |
| 912 | |a GBV_USEFLAG_U | ||
| 912 | |a ZDB-1-DGR | ||
| 912 | |a GBV_NL_ARTICLE | ||
| 951 | |a AR | ||
| 952 | |d 5 |j 2011 |e 2 |b 06 |c 06 |h 71-80 |g 10 | ||
| author_variant |
f f ff l m lm a m am |
|---|---|
| matchkey_str |
article:18629024:2011----::dsusoohihrdcinfreihyrsaidlyd |
| hierarchy_sort_str |
2011 |
| publishDate |
2011 |
| allfields |
10.1515/jag.2011.006 doi artikel_Grundlieferung.pp (DE-627)NLEJ247064092 DE-627 ger DE-627 rakwb Fund, F. verfasserin aut A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models Walter de Gruyter GmbH & Co. KG 2011 10 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © de Gruyter 2011 Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. Walter de Gruyter Online Zeitschriften Troposphere Zenith Hydrostatic Delays IERS conventions Morel, L. verfasserin aut Mocquet, A. verfasserin aut Enthalten in Journal of applied geodesy Berlin [u.a.] : de Gruyter, 2007 5(2011), 2 vom: 06. Juni, Seite 71-80 (DE-627)NLEJ248235923 (DE-600)2248811-X 1862-9024 nnns volume:5 year:2011 number:2 day:06 month:06 pages:71-80 extent:10 https://doi.org/10.1515/jag.2011.006 Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-DGR GBV_NL_ARTICLE AR 5 2011 2 06 06 71-80 10 |
| spelling |
10.1515/jag.2011.006 doi artikel_Grundlieferung.pp (DE-627)NLEJ247064092 DE-627 ger DE-627 rakwb Fund, F. verfasserin aut A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models Walter de Gruyter GmbH & Co. KG 2011 10 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © de Gruyter 2011 Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. Walter de Gruyter Online Zeitschriften Troposphere Zenith Hydrostatic Delays IERS conventions Morel, L. verfasserin aut Mocquet, A. verfasserin aut Enthalten in Journal of applied geodesy Berlin [u.a.] : de Gruyter, 2007 5(2011), 2 vom: 06. Juni, Seite 71-80 (DE-627)NLEJ248235923 (DE-600)2248811-X 1862-9024 nnns volume:5 year:2011 number:2 day:06 month:06 pages:71-80 extent:10 https://doi.org/10.1515/jag.2011.006 Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-DGR GBV_NL_ARTICLE AR 5 2011 2 06 06 71-80 10 |
| allfields_unstemmed |
10.1515/jag.2011.006 doi artikel_Grundlieferung.pp (DE-627)NLEJ247064092 DE-627 ger DE-627 rakwb Fund, F. verfasserin aut A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models Walter de Gruyter GmbH & Co. KG 2011 10 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © de Gruyter 2011 Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. Walter de Gruyter Online Zeitschriften Troposphere Zenith Hydrostatic Delays IERS conventions Morel, L. verfasserin aut Mocquet, A. verfasserin aut Enthalten in Journal of applied geodesy Berlin [u.a.] : de Gruyter, 2007 5(2011), 2 vom: 06. Juni, Seite 71-80 (DE-627)NLEJ248235923 (DE-600)2248811-X 1862-9024 nnns volume:5 year:2011 number:2 day:06 month:06 pages:71-80 extent:10 https://doi.org/10.1515/jag.2011.006 Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-DGR GBV_NL_ARTICLE AR 5 2011 2 06 06 71-80 10 |
| allfieldsGer |
10.1515/jag.2011.006 doi artikel_Grundlieferung.pp (DE-627)NLEJ247064092 DE-627 ger DE-627 rakwb Fund, F. verfasserin aut A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models Walter de Gruyter GmbH & Co. KG 2011 10 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © de Gruyter 2011 Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. Walter de Gruyter Online Zeitschriften Troposphere Zenith Hydrostatic Delays IERS conventions Morel, L. verfasserin aut Mocquet, A. verfasserin aut Enthalten in Journal of applied geodesy Berlin [u.a.] : de Gruyter, 2007 5(2011), 2 vom: 06. Juni, Seite 71-80 (DE-627)NLEJ248235923 (DE-600)2248811-X 1862-9024 nnns volume:5 year:2011 number:2 day:06 month:06 pages:71-80 extent:10 https://doi.org/10.1515/jag.2011.006 Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-DGR GBV_NL_ARTICLE AR 5 2011 2 06 06 71-80 10 |
| allfieldsSound |
10.1515/jag.2011.006 doi artikel_Grundlieferung.pp (DE-627)NLEJ247064092 DE-627 ger DE-627 rakwb Fund, F. verfasserin aut A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models Walter de Gruyter GmbH & Co. KG 2011 10 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © de Gruyter 2011 Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. Walter de Gruyter Online Zeitschriften Troposphere Zenith Hydrostatic Delays IERS conventions Morel, L. verfasserin aut Mocquet, A. verfasserin aut Enthalten in Journal of applied geodesy Berlin [u.a.] : de Gruyter, 2007 5(2011), 2 vom: 06. Juni, Seite 71-80 (DE-627)NLEJ248235923 (DE-600)2248811-X 1862-9024 nnns volume:5 year:2011 number:2 day:06 month:06 pages:71-80 extent:10 https://doi.org/10.1515/jag.2011.006 Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-DGR GBV_NL_ARTICLE AR 5 2011 2 06 06 71-80 10 |
| source |
Enthalten in Journal of applied geodesy 5(2011), 2 vom: 06. Juni, Seite 71-80 volume:5 year:2011 number:2 day:06 month:06 pages:71-80 extent:10 |
| sourceStr |
Enthalten in Journal of applied geodesy 5(2011), 2 vom: 06. Juni, Seite 71-80 volume:5 year:2011 number:2 day:06 month:06 pages:71-80 extent:10 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| topic_facet |
Troposphere Zenith Hydrostatic Delays IERS conventions |
| isfreeaccess_bool |
false |
| container_title |
Journal of applied geodesy |
| authorswithroles_txt_mv |
Fund, F. @@aut@@ Morel, L. @@aut@@ Mocquet, A. @@aut@@ |
| publishDateDaySort_date |
2011-06-06T00:00:00Z |
| hierarchy_top_id |
NLEJ248235923 |
| id |
NLEJ247064092 |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ247064092</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220820025845.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">220814s2011 xx |||||o 00| ||und c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1515/jag.2011.006</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">artikel_Grundlieferung.pp</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ247064092</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="100" ind1="1" ind2=" "><subfield code="a">Fund, F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="b">Walter de Gruyter GmbH & Co. KG</subfield><subfield code="c">2011</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">10</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">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© de Gruyter 2011</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Walter de Gruyter Online Zeitschriften</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Troposphere</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Zenith Hydrostatic Delays</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">IERS conventions</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Morel, L.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mocquet, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Journal of applied geodesy</subfield><subfield code="d">Berlin [u.a.] : de Gruyter, 2007</subfield><subfield code="g">5(2011), 2 vom: 06. Juni, Seite 71-80</subfield><subfield code="w">(DE-627)NLEJ248235923</subfield><subfield code="w">(DE-600)2248811-X</subfield><subfield code="x">1862-9024</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:5</subfield><subfield code="g">year:2011</subfield><subfield code="g">number:2</subfield><subfield code="g">day:06</subfield><subfield code="g">month:06</subfield><subfield code="g">pages:71-80</subfield><subfield code="g">extent:10</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1515/jag.2011.006</subfield><subfield code="z">Deutschlandweit zugänglich</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-DGR</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">5</subfield><subfield code="j">2011</subfield><subfield code="e">2</subfield><subfield code="b">06</subfield><subfield code="c">06</subfield><subfield code="h">71-80</subfield><subfield code="g">10</subfield></datafield></record></collection>
|
| series2 |
Walter de Gruyter Online Zeitschriften |
| author |
Fund, F. |
| spellingShingle |
Fund, F. misc Troposphere misc Zenith Hydrostatic Delays misc IERS conventions A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models |
| authorStr |
Fund, F. |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)NLEJ248235923 |
| format |
electronic Article |
| delete_txt_mv |
keep |
| author_role |
aut aut aut |
| collection |
NL |
| remote_str |
true |
| illustrated |
Not Illustrated |
| issn |
1862-9024 |
| topic_title |
A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models Troposphere Zenith Hydrostatic Delays IERS conventions |
| publisher |
Walter de Gruyter GmbH & Co. KG |
| publisherStr |
Walter de Gruyter GmbH & Co. KG |
| topic |
misc Troposphere misc Zenith Hydrostatic Delays misc IERS conventions |
| topic_unstemmed |
misc Troposphere misc Zenith Hydrostatic Delays misc IERS conventions |
| topic_browse |
misc Troposphere misc Zenith Hydrostatic Delays misc IERS conventions |
| format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
cr |
| hierarchy_parent_title |
Journal of applied geodesy |
| hierarchy_parent_id |
NLEJ248235923 |
| hierarchy_top_title |
Journal of applied geodesy |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)NLEJ248235923 (DE-600)2248811-X |
| title |
A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models |
| ctrlnum |
(DE-627)NLEJ247064092 |
| title_full |
A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models |
| author_sort |
Fund, F. |
| journal |
Journal of applied geodesy |
| journalStr |
Journal of applied geodesy |
| isOA_bool |
false |
| recordtype |
marc |
| publishDateSort |
2011 |
| contenttype_str_mv |
txt |
| container_start_page |
71 |
| author_browse |
Fund, F. Morel, L. Mocquet, A. |
| container_volume |
5 |
| physical |
10 |
| format_se |
Elektronische Aufsätze |
| author-letter |
Fund, F. |
| doi_str_mv |
10.1515/jag.2011.006 |
| author2-role |
verfasserin |
| title_sort |
a discussion of height reductions for zenith hydrostatic delays derived from weather models |
| title_auth |
A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models |
| abstract |
Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. © de Gruyter 2011 |
| abstractGer |
Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. © de Gruyter 2011 |
| abstract_unstemmed |
Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations. © de Gruyter 2011 |
| collection_details |
GBV_USEFLAG_U ZDB-1-DGR GBV_NL_ARTICLE |
| container_issue |
2 |
| title_short |
A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models |
| url |
https://doi.org/10.1515/jag.2011.006 |
| remote_bool |
true |
| author2 |
Morel, L. Mocquet, A. |
| author2Str |
Morel, L. Mocquet, A. |
| ppnlink |
NLEJ248235923 |
| mediatype_str_mv |
c |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| doi_str |
10.1515/jag.2011.006 |
| up_date |
2024-07-06T09:52:13.803Z |
| _version_ |
1803822860917014528 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ247064092</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220820025845.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">220814s2011 xx |||||o 00| ||und c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1515/jag.2011.006</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">artikel_Grundlieferung.pp</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ247064092</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="100" ind1="1" ind2=" "><subfield code="a">Fund, F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">A discussion of height reductions for Zenith Hydrostatic Delays derived from weather models</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="b">Walter de Gruyter GmbH & Co. KG</subfield><subfield code="c">2011</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">10</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">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© de Gruyter 2011</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Accurate a priori Zenith Hydrostatic Delays (ZHDs) are required during the processing of space geodetic observations. The data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF) are routinely processed and translated in terms of ZHDs by the Vienna University of Technology. The usual way to compute gridded ZHDs at a particular location is to correct the four nearest nodes of the grid for their difference in height with respect to the site height and to then interpolate these reduced values. This paper compares and discusses the performance achieved by five methods of reduction that have been proposed in the literature. The interpolated ZHD values are compared with the site-specific ones for a global network of 363 sites over a three-year period. The methods that only use vertical profiles of atmospheric pressure lead to annual signals that are correlated with ground temperature, while the methods that take temperature into account do not contain such annual signals. The reduction methods that use a constant temperature lead to errors of ~2 mm in terms of equivalent height. We also find that the a posteriori errors of the reduced gridded ZHDs are strongly correlated with the pressure over temperature ratio. We recommend that gridded ZHDs be reduced with the combination of both pressure and temperature when processing space geodetic observations.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Walter de Gruyter Online Zeitschriften</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Troposphere</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Zenith Hydrostatic Delays</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">IERS conventions</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Morel, L.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mocquet, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Journal of applied geodesy</subfield><subfield code="d">Berlin [u.a.] : de Gruyter, 2007</subfield><subfield code="g">5(2011), 2 vom: 06. Juni, Seite 71-80</subfield><subfield code="w">(DE-627)NLEJ248235923</subfield><subfield code="w">(DE-600)2248811-X</subfield><subfield code="x">1862-9024</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:5</subfield><subfield code="g">year:2011</subfield><subfield code="g">number:2</subfield><subfield code="g">day:06</subfield><subfield code="g">month:06</subfield><subfield code="g">pages:71-80</subfield><subfield code="g">extent:10</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1515/jag.2011.006</subfield><subfield code="z">Deutschlandweit zugänglich</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-DGR</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">5</subfield><subfield code="j">2011</subfield><subfield code="e">2</subfield><subfield code="b">06</subfield><subfield code="c">06</subfield><subfield code="h">71-80</subfield><subfield code="g">10</subfield></datafield></record></collection>
|
| score |
7.400093 |