Raw Level automatisiert zertifiziert US beta
Diese Daten erreichen Raw Level am on 23 October 2015 das bedeutet dies ist ein großartiger Schritt für die Grundlagen der Veröffentlichung offener Daten.
Daily TRMM and Others Rainfall Estimate (3B42 V7 derived) V7
Zusammenfassung
- Art der Freigabe
- a one-off release of a single dataset
- Datenlizenz
- Not Applicable
- Inhaltslizenz
- Creative Commons CCZero
- Bestätigung
- automatisiert zertifiziert
- Veröffentlichungsdatum
- 8 July 2015
- Änderungsdatum
- 31 August 2015
- Aktualisierungshäufigkeit
- irregular
- Herausgeber
- National Aeronautics and Space Administration
- Schlagworte
- atmosphere, earth-science, national-geospatial-data-asset, ngda, precipitation
- Identifier
- daily-trmm-and-others-rainfall-estimate-3b42-v7-derived-v7-76c87
- Landing Page
- http://reverb.echo.nasa.gov/reverb?selected=C197859242-GSFCS4PA
- Maintainers
- GEORGE HUFFMAN George.J.Huffman@nasa.gov
- Theme
- geospatial
- Language
- en-US
Community-Bestätigung
Andere Personen können bestätigen, ob die Antworten auf diesem Zertifikat korrekt sind
Dieses Zertifikat ist automatisiert zertifiziert.
Anmelden um dieses Zertifikat zu bestätigen oder zu melden
Beschreibung
The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully launched on November 27, at 4:27 PM (EST) from the Tanegashima Space Center in Japan. The precipitation-relevant instruments on the TRMM satellite include the Precipitation Radar (PR), an electronically scanning radar operating at 13.8 GHz; TRMM Microwave Image (TMI), a nine-channel passive microwave radiometer; and Visible and Infrared Scanner (VIRS), a five-channel visible/infrared radiometer. The purpose of the 3B42 algorithm is to produce TRMM- and raingauge-adjusted multi-satellite precipitation rate (in mm/hr) and root-mean-square (RMS) precipitation-error estimates. The algorithm combines multiple independent precipitation estimates from the TMI, Advanced Microwave Scanning Radiometer for Earth Observing Systems (AMSR-E), Special Sensor Microwave Imager (SSMI), Special Sensor Microwave Imager/Sounder (SSMIS), Advanced Microwave Sounding Unit (AMSU), Microwave Humidity Sounder (MHS), and microwave-adjusted merged geo-infrared (IR). All input microwave data are intercalibrated to TRMM Combined Instrument (TCI) precipitation estimates (TRMM product 3B31); the IR estimates are computed using monthly matched microwave-IR histogram matching; then missing data in individual 3-hourly merged-microwave fields are filled with the IR estimates. After the preprocessing is complete, the 3-hourly multi-satellite fields are summed for the month and combined with the monthly accumulated Global Precipitation Climatology Centre (GPCC) rain gauge analysis using inverse-error-variance weighting to form a monthly best-estimate precipitation rate, which is TRMM Product 3B43. The final step is to scale all the 3-hourly estimates for the month to sum to the monthly value (for each gridbox separately). The final 3B42 precipitation (in mm/hr) estimates have a 3-hourly temporal resolution and a 0.25�x0.25� spatial resolution. The spatial coverage is the latitude band 50�S to 50�N. Important Changes: After the initial Version 7 processing, it was discovered that AMSU data were neglected in the first retrospective processing of both the Version 7 TMPA (3B42/43) and TMPA-RT (3B40/41/42RT) data series, which created an important shortcoming in the inventory of microwave precipitation estimates used during 2000-2010. In addition, a coding error in the TMPA-RT replaced the occasional missings in product 3B42RT with zeros. Accordingly, both product series were retrospectively processed again. The main impact in both series was to improve the fine-scale patterns of precipitation during 2000-2010 (and for 3B4xRT into late 2012). Averages over progressively larger time/space scales should be progressively less affected. [This is the reason the lack of AMSU went undiscovered; the merger system copes very reasonably with missing data.] Nonetheless, users are urged to switch to the newest Version 7 data sets. The newest runs may be identified by the file names: V.7 3B42/43 suffix of "7A.HDF" for January 2000 - September 2010 V.7 3B4xRT suffix of "7R2.bin" for 1 March 2000 - 6 November 2012 It continues to be the case that the Version 7 3B42/43 is some 4% higher than the calibrating data set (2B31) over oceans, which is still under study. However, the initial conclusion is that it results from the sampling mismatch between the (very sparse) TCI and the (much denser) microwave constellation. At the large scales this offset seems to be nearly a proportional constant. TMPA Restarted with October 2014: On October 07, 2014, routine production ended for the TRMM PR precipitation estimates. Since PR is no longer available, the TMI/PR combined instrument (TCI) estimates are also no longer available. As products 3B42/3B43 use the TCI estimates as the satellite calibrator, September 2014 is the last month these products were produced in this way. In a...
Allgemeine Informationen
-
Die Beschreibung der Daten befindet sich unter
http://catalog.data.gov/dataset/daily-trmm-and-others-rainfall-estimate-3b42-v7-derived-v7-76c87 Do you think this data is incorrect? Let us know
-
Die Daten werden veröffentlicht von…
National Aeronautics and Space Administration Do you think this data is incorrect? Let us know
Rechtliche Information
-
Die Nutzungsbestimmungen finden sich unter
http://catalog.data.gov/dataset/daily-trmm-and-others-rainfall-estimate-3b42-v7-derived-v7-76c87 Do you think this data is incorrect? Let us know
-
Under which licence can people outside the US reuse this data?
Creative Commons CCZero Do you think this data is incorrect? Let us know
-
Es gibt
yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know
-
Die Inhalte können im Rahmen der folgenden Lizenz weiterverwendet werden
Creative Commons CCZero Do you think this data is incorrect? Let us know
-
Die Nutzungsbestimmungen enthalten Daten zu
der Datenlizenz Do you think this data is incorrect? Let us know
-
Die Daten enthalten
keine personenbezogenen Daten Do you think this data is incorrect? Let us know
Praktische Hinweise
-
Die Daten finden sich im Katalog…
http://catalog.data.gov/organization/nasa-gov Do you think this data is incorrect? Let us know
-
Die Genauigkeit oder Bedeutsamkeit dieser Daten
wird veralten, enthält aber Zeitstempel Do you think this data is incorrect? Let us know
-
Die Daten werden
örtlich getrennt gesichert Do you think this data is incorrect? Let us know
Technische Hinweise
-
Die Daten werden veröffentlicht unter
http://disc.gsfc.nasa.gov/precipitation/index.shtml Do you think this data is incorrect? Let us know
Soziale Hinweise
-
Die Dokumentation enthält maschinenlesbare Daten für
Titel Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Beschreibung Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Bezeichner Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Landing Page Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Veröffentlichungsfrequenz Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Herausgeber Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Schlagworte oder Tags Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Them(a)/(en) Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Distribution(en) Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Veröffentlichungsdatum Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Änderungsdatum Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
zeitliche Abdeckung Do you think this data is incorrect? Let us know
-
Die Dokumentation enthält maschinenlesbare Daten für
Sprache Do you think this data is incorrect? Let us know
-
Die Dokumentation jeder Distribution enthält maschinenlesbare Angaben für
Veröffentlichungsdatum Do you think this data is incorrect? Let us know
-
Die Dokumentation jeder Distribution enthält maschinenlesbare Angaben für
eine URL für den Zugang zu den Daten Do you think this data is incorrect? Let us know
-
Die Dokumentation jeder Distribution enthält maschinenlesbare Angaben für
eine URL zum Herunterladen der Daten Do you think this data is incorrect? Let us know
-
Die Dokumentation jeder Distribution enthält maschinenlesbare Angaben für
Typ des herunterzuladenden Mediums Do you think this data is incorrect? Let us know
-
Einen Ansprechpartner zu diesen Daten finden Sie unter
http://catalog.data.gov/dataset/daily-trmm-and-others-rainfall-estimate-3b42-v7-derived-v7-76c87 Do you think this data is incorrect? Let us know
-
Wie sie Verbesserungen dieser Daten vorschlagen können erfahren Sie unter
http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/daily-trmm-and-others-rainfall-estimate-3b42-v7-derived-v7-76c87 Do you think this data is incorrect? Let us know