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DOI for scientific and technical data

Identifier
doi:10.5676/EUM_SAF_CM/GVAP/V001

Title
The GEWEX water vapor assessment archive of water vapour products from satellites and reanalyses

Citation
Schröder, Marc; Lockhoff, Maarit; Fell, Frank; Forsythe, John; Trent, Tim; Bennartz, Ralf; Borbas, Eva; Bosilovich, Michael G.; Castelli, Elisa; Hersbach, Hans; Kachi, Misako; Kobayashi, Shinya; Loyola, Diego; Mears, Carl; Preusker, Rene; Rossow, William B., Saha, Suranjana (2017): The GEWEX water vapor assessment archive of water vapour products from satellites and reanalyses. DOI:10.5676/EUM_SAF_CM/GVAP/V001. http://dx.doi.org/10.5676/EUM_SAF_CM/GVAP/V001

Publisher
Satellite Application Facility on Climate Monitoring (CM SAF)

Publication year
2017

Author(s)
Schröder, Marc; Lockhoff, Maarit; Fell, Frank; Forsythe, John; Trent, Tim; Bennartz, Ralf; Borbas, Eva; Castelli, Elisa; Hersbach, Hans; Kachi, Misako; Kobayashi, Shinya; Loyola, Diego; Mears, Carl; Preusker, Rene; Rossow, William B., Saha, Suranjana

Description
The GEWEX Data and Assessments Panel (GDAP) initiated the GEWEX Water Vapor Assessment (G-VAP) which has the main objectives to quantify the current state of art in water vapour products being constructed for climate applications and to support the selection process of suitable water vapour products by GDAP for its production of globally consistent water and energy cycle products. During the construction of the G-VAP data archive freely available and mature satellite and reanalysis data records with a minimum temporal coverage of ten years were considered. The data archive contains total column water vapour as well as specific humidity and temperature at four pressure levels (1000, 700, 500, 300 hPa). The following data records are elements of the G-VAP archive: AIRWAVE, AMSR-E (JAXA, REMSS), ATOVS, CFSR, EMiR, ERA-20C, ERA-Interim, GOME/SCIAMACHY/GOME2, HOAPS, JRA-55, MERIS, MERRA, MERRA2, MODIS-AQUA, NVAP-M (Ocean, Climate), REMSS, SSM/I+MERIS, and TMI (further details at http://www.gewex-vap.org/?page_id=309). All data records were remapped to a regular longitude/latitude grid of 2°x2°. The data archive consists of four different folders: 22 TCWV data records covering the period 2003-2008, 11 TCWV data records covering the period 1988-2008 as well as seven specific humidity and seven temperature data records covering the period 1988-2009. Besides comprehensive metadata the files contain spatio-temporal averages of TCWV in units of kg/m2, of specific humidity in units of g/kg and of temperature in units of K.

Size
6.3 GB

Format
NetCDF

Version
v1.0

Terms of use
Please note that:
a. Some of the data records may be outdated by now.
b. Regridding has impacted the original variability.
c. Individual data records differ in terms of spatial and temporal sampling, coverage, and masks applied.

Access to the G-VAP data archive is granted under the following conditions:
1. The G-VAP data archive in its original form shall only be obtained from the G-VAP online repository.
2. No warranty is attached to the G-VAP data archive and no liability can be accepted for anything resulting from its use.
3. The G-VAP data record shall be referenced as follows: Schröder et al. (2017) as well as DOI:10.5676/EUM_SAF_CM/GVAP/V001.

Data access
https://public.satproj.klima.dwd.de/data/GVAP_data_archive/v1.0/

References
Schröder, M., M. Lockhoff, J. Forsythe, H. Cronk, T. H. Vonder Haar, R. Bennartz, 2016: The GEWEX water vapor assessment (G-VAP) – results from the trend and homogeneity analysis. J. Applied Meteor. Clim., 1633-1649, 55 (7), DOI:10.1175/JAMC-D-15-0304.1.
Schröder, M., M. Lockhoff, L. Shi, T. August, R. Bennartz, H. Brogniez, X. Calbet, F. Fell, J. Forsythe, A. Gambacorta, S.-P. Ho, E. R. Kursinski, A. Reale, T. Trent, Q. Yang, 2019: The GEWEX water vapor assessment of global water vapour and temperature data records from satellites and reanalyses. Rem. Sens., 11(3), 251, DOI:10.3390/rs11030251.
Schröder, M., Lockhoff, M., Fell, F., Forsythe, J., Trent, T., Bennartz, R., Borbas, E., Bosilovich, M. G., Castelli, E., Hersbach, H., Kachi, M., Kobayashi, S., Kursinski, E. R., Loyola, D., Mears, C., Preusker, R., Rossow, W. B., and Saha, S.: The GEWEX Water Vapor Assessment archive of water vapour products from satellite observations and reanalyses, Earth Syst. Sci. Data, 10, 1093-1117, DOI:10.5194/essd-10-1093-2018, 2018.

Data Protection Policy
https://www.dwd.de/EN/service/dataprotection/dataprotection.html