Deutsch
 
Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
 
 
DownloadE-Mail
 Lokale TagsFreigabegeschichteDetailsÜbersicht
  What Can be Expected from the GRACE-FO Laser Ranging Interferometer for Earth Science Applications?

Flechtner, F., Neumayer, K., Dahle, C., Dobslaw, H., Fagiolini, E., Raimondo, J.-C., Güntner, A. (2016): What Can be Expected from the GRACE-FO Laser Ranging Interferometer for Earth Science Applications? - In: Cazenave, A., Champollion, N., Benveniste, J., Chen, J. (Eds.), Remote Sensing and Water Resources, (Space Sciences Series of ISSI ; 55), Cham : Springer International Publishing, 263-280.
https://doi.org/10.1007/978-3-319-32449-4_11

Item is

 

einblenden: alle ausblenden: alle

Basisdaten

einblenden: ausblenden:
Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_2020892 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_2020892_5
Genre: Buchkapitel

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Flechtner, Frank1, Autor              
Neumayer, Karl1, Autor              
Dahle, Christoph1, Autor              
Dobslaw, H.2, Autor              
Fagiolini, Elisa1, Autor              
Raimondo, J.-C.1, Autor              
Güntner, A.3, Autor              
Affiliations:
11.2 Global Geomonitoring and Gravity Field, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146026              
21.3 Earth System Modelling, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146027              
35.4 Hydrology, 5.0 Geoarchives, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146048              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: The primary objective of the gravity recovery and climate experiment followon (GRACE-FO) satellite mission, due for launch in August 2017, is to continue the GRACE time series of global monthly gravity field models. For this, evolved versions of the GRACE microwave instrument, GPS receiver, and accelerometer will be used. A secondary objective is to demonstrate the effectiveness of a laser ranging interferometer (LRI) in improving the satellite-to-satellite tracking measurement performance. In order to investigate the expected enhancement for Earth science applications, we have performed a full-scale simulation over the nominal mission lifetime of 5 years using a realistic orbit scenario and error assumptions both for instrument and background model errors. Unfiltered differences between the synthetic input and the finally recovered time-variable monthly gravity models show notable improvements with the LRI, on a global scale, of the order of 23 %. The gain is realized for wavelengths smaller than 240 km in case of Gaussian filtering but decreases to just a few percent when anisotropic filtering is applied. This is also confirmed for some typical regional Earth science applications which show randomly distributed patterns of small improvements but also degradations when using DDK4-filtered LRI-based models. Analysis of applied error models indicates that accelerometer noise followed by ocean tide and non-tidal mass variation errors are the main contributors to the overall GRACE-FO gravity model error. Improvements in these fields are therefore necessary, besides optimized constellations, to make use of the increased LRI accuracy and to significantly improve gravity field models from next-generation gravity missions.

Details

einblenden:
ausblenden:
Sprache(n): eng - Englisch
 Datum: 2016
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1007/978-3-319-32449-4_11
GFZPOF: p3 PT1 Global Processes
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Remote Sensing and Water Resources
Genre der Quelle: Buch
 Urheber:
Cazenave, A.1, Herausgeber
Champollion, N.1, Herausgeber
Benveniste, J.1, Herausgeber
Chen, J.1, Herausgeber
Affiliations:
1 External Organizations, ou_persistent22            
Ort, Verlag, Ausgabe: Cham : Springer International Publishing
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 263 - 280 Identifikator: -

Quelle 2

einblenden:
ausblenden:
Titel: Space Sciences Series of ISSI
Genre der Quelle: Reihe
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 55 Artikelnummer: - Start- / Endseite: - Identifikator: -