ESA CCI Surface Soil Moisture (ESA CCI SM) Changelog ---------------------------------------------------- ESA CCI SM v04.2, release 2018-01-18 ------------------------------------ - official release to the general public - More details are found in the Product Specification Document (PSD) v04.2 in the doc folder. ESA CCI SM v04.1, release 2017-08-02 ------------------------------------ - release to project partners and key user group - More details are found in the Product Specification Document (PSD) v2.1 in the doc folder. - GLDAS-Noah soil temperature and Snow Water Equivalent estimates are now used to mask out unreliable retrievals before CDF-Matching (COMBINED only) and TC error estimation (all products) - ALL data sets are now rescaled against GLDAS v1 due to inconsistencies between v1 and v2.0 (COMBINED only) - "frozen" flags of active products are now used to mask out unreliable retrievals in the passive products and vice versa (COMBINED only) - update of AMSR2 data - correction of incorrect metadata in netCDF images (LPRMv06 used for AMSRE, SMOS, and AMSR2 since ESA CCI SM v03.2) ESA CCI SM v04.0, release 2017-03-20 ------------------------------------ - internal release to project partners - bug fixes - spatial gaps in TC-based SNR estimates now filled using a polynomial SNR-VOD regression - sm_uncertainties now available globally for all sensors except SMMR - COMBINED product now generated by merging the active and passive L2 products directly (instead of merging the merged ACTIVE and PASSIVE product) - The p-value based mask to exclude unreliable input data sets in the COMBINED product has been modified - The modified p-value mask is now also applied in the PASSIVE product. - please read the the Product Specification Document (PSD) v1.10 and the readme.txt file for more information ESA CCI SM v03.3, release 2017-11-13 ------------------------------------ - temporal extension of ACTIVE, PASSIVE and COMBINED datasets to 2016-12-31 (inclusive) - please read the the Product Specification Document (PSD) v2.0 and the readme.txt file for more information ESA CCI SM v03.2, release 2017-02-14 ------------------------------------ - official release to the general public - processing chain revised - bug fixes - SMOS temporal coverage extended - soil moisture uncertainty estimates now provided from 1991-08-05 onwards (ACTIVE), and from 1987-07-10 onwards (PASSIVE, and COMBINED) - sm and sm_uncertainty now saved as float32 in NetCDF data files Important: no scale_factor (NetCDF) applied anymore - two new quality flags introduced - please read the the Product Specification Document (PSD) v1.9 and the readme.txt file for more information ESA CCI SM v03.1, release 2016-11-02 ------------------------------------ - release to project partners and key user group - improved blending weight calculation - blending made more conservative concerning the inclusion of single low-accuracy observations (on the cost of temporal coverage) - Integration of Metop-B ASCAT - error estimates which are used for relative weight estimation now provided alongside with the merged soil moisture observations (replacing former error propagation estimates) - Important: uncertainty (noise) estimates not yet available for entire period (see PSD for details) - bug fixes in the data processing chain - More details are found in the Product Specification Document (PSD) v1.8 in the doc folder. ESA CCI SM v03.0, release 2016-04-25 ------------------------------------ - internal release to project partners - introducing new weighted-average based merging scheme - Miras SMOS (LPRM) now integerated into the data products - processing software engine running in Python 2.7x - blending weights provided as ancillary data files - Important: dnFlag, flag, freqbandID, mode, and sensor variable are now re-assigned with different value meaning. Please read PSD v1.7 in the doc folder. ESA CCI SM v02.3, release 2016-02-08 ----------------------------------- - internal data set extension (until end of 2015) - valid_range in netCDF files now set to the packed data range - processing software engine ported from IDL to Python 2.7x ESA CCI SM v02.2, release 2015-12-17 ----------------------------------- - release to the general public - available after registration at project's web site ESA CCI SM v02.2, release 2015-08-06 ----------------------------------- - changes to the five ancillary data files: * latitudes now goes from positive to negative values (same ordering as found in the daily soil moisture files) * new eodc e-mail addresses - readme.txt updated ESA CCI SM v02.2, release 2015-07-31 ----------------------------------- - release to the key usere community - no changes in the dataset itself but changes in NetCDF meta data - new e-mail contact address: cci_sm_contact@eodc.eu and cci_sm_developer@eodc.eu ESA CCI SM v02.2, 2015-03-17 --------------------------- - Project internal release - the temporal coverage is now Nov-1978 to Dec-2014 - improvement in the flagging of the active data where extreme high and low values are filtered - bug fix of the calculation of correlation coefficient R between active and passive data. ESA CCI SM v02.1, 2014-12-03 --------------------------- - name change to ESA CCI SM - bug fix of sensor IDs of ASCAT and all combinations with ASCAT - invalid soil moisture values (flagged with values other than 0) are now set to NaN ECV SM SM v02.0, 2014-07-10 -------------------------- - release to the general public - bug fixes - five ancillary data sets provided in addition to the three data products: * Global land mask used in the ECV SM v02.0 products * Global porosity map derived by applying soil water characteristic equations of Saxton and Rawls (2006) to texture data of the Harmonized World Soil Database v1 * Global AMSR-E VUA-NASA Vegetation Optical Depth averaged over the period 2002-2011 * Global topographic complexity * Global Wetland fraction ECV SM v1.2, 2014-03-03 ----------------------- - available only to CCI project members - all three data sets now also have days included where no observations are available ("empty/blank days/images") ECV SM v1.1, 2014-02-19 ----------------------- - available only to CCI project members - three products available: * Active product: merged data from active sensors * Passive product: merged data from passive sensors * Combined product: the combination of the Active and Passive product - dataset time span: * 1978-11-01 to 2013-12-13 (for the Passive and the Combined product) * 1991-08-05 to 2013-12-13 (for the Active product) - using new land mask based on GSHHG 2.2.2, more detailed coastline - WindSat and preliminary AMSR2 included - using LPRM v05 for all passive sensors - using WARP 5.5 for ASCAT and ERS1/2, WARP 5.4 for ERS2 data - ERS2 included in AMI-WS dataset - active data resampled with Hamming window function - improved rescaling algorithm - data gaps in 20030216 to 20061231 filled with AMSR-E data - data files format: NetCDF-4 classic CF1.5 compliant ECV SM v0.1, 2012-06-18 (First release) --------------------------------------- - included sensors: passive: SMMR, SSM/I, TMI, AMSR-E; active: AMI-WS, ASCAT - dataset time span: 1978-11-01 to 2010-12-31 - only combined product available - data files format: NetCDF-3 classic CF1.5 compliant ------------------------------------------------------------------------ For more information on these products please contact ecv_sm_contact@ipf.tuwien.ac.at. These data were produced as part of the ESA CCI Soil Moisture and WACMOS projects. Contract No. ESRIN 22086/08/I-EC, ESRIN 4000104814/11/I-NB. -- Vienna, 15th January 2018. ------------------------------------------------------------------------ Vienna University of Technology Department of Geodesy and Geoinformation - Research Group Remote Sensing Gußhausstraße 27-29/E120.1 A-1040 Vienna Austria Phone: +43 1 58801-12001 E-Mail: cci_sm_contact@eodc.eu ------------------------------------------------------------------------