48d69bd4dd89464fb1f32c3669bfaa94 English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 2f068226c7164a799cf202d1e7af07b2 dataset Centre for Environmental Data Analysis (CEDA) 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointOfContact 2026-07-11T08:26:01 UK GEMINI 2.3 WGS 84 European Space Agency (ESA) GlobSnow L3B mean STD of 7 day running mean Snow Water Equivalent (SWE) Estimates (1979-2013) 2015-11-21T16:18:32 publication 2015-11-21T16:18:32 creation https://catalogue.ceda.ac.uk/uuid/48d69bd4dd89464fb1f32c3669bfaa94 48d69bd4dd89464fb1f32c3669bfaa94 Finnish Meteorological Institute (FMI) The ESA funded GlobSnow project produced snow water equivalent (SWE) 7-day estimates and standard errors for the Northern Hemisphere for the years 1979-2013. SWE describes the amount of liquid water in the snow pack that would be formed if the snow pack was completely melted. Weekly Aggregated Snow Water Equivalent (Weekly L3B SWE) were calculated for each day based on a 7-day sliding time window aggregation of the daily SWE product. The SWE product shall cover the Northern Hemisphere, excluding the mountainous areas, Greenland, the glaciers and snow on ice (lakes/seas/oceans) The spatial resolution of the product is 25 km on EASE-grid projection. Construction of the 30 years historical data set will be carried out using SMMR, SSM/I and SSMI/S data along with ground-based weather station data. The data are utilized for the different years as follows: 1979/09/11 - 1987/10/30 SMMR (Scanning Multichannel Microwave Radiometer onboard Nimbus-7 satellite) 1987/11/01 - 2008/12/31 SSM/I (Special Sensor Microwave/Imager onboard the DMSP satellite series F8/F11/F13) 2009/01/01 - present SSM/I(S) (Special Sensor Microwave/Imager (Sounder) onboard the DMSP satellite series F17/F18/) These data may be redistributed and used without restriction. Luojus, Kari Unavailable author Unavailable author Centre for Environmental Data Analysis (CEDA) custodian 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk custodian Centre for Environmental Data Analysis (CEDA) data_owner 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk owner Centre for Environmental Data Analysis (CEDA) distributor 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk distributor Pulliainen, Jouni Unavailable principal_investigator Unavailable principalInvestigator Centre for Environmental Data Analysis (CEDA) point_of_contact 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointofContact Finnish Meteorological Institute (FMI) publisher Helsinki Finland unknown publisher notPlanned dataset esa globsnow swe snow climate northern hemisphere monthly error estimate orthoimagery theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions Public data: access to these data is available to both registered and non-registered users. otherRestrictions Under the following licence http://creativecommons.org/licenses/by/3.0/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. grid English imageryBaseMapsEarthCover -180.0 180.0 0.0 90.0 1979-09-10T23:00:00 2013-05-30T22:59:59 The SWE products are distributed in NetCDF-4 classic format, following the CF-1.6 convention: a single file contains the data for a single variable on the date given in the file name. Centre for Environmental Data Analysis (CEDA) Data Center Contact 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk distributor https://catalogue.ceda.ac.uk/uuid/48d69bd4dd89464fb1f32c3669bfaa94 CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/esa_globsnow/data/v2.0/square_of_standard_error_L3B_7day_mean DOWNLOAD Download Data download http://data.ceda.ac.uk/neodc/esa_globsnow/doc/GlobSnow-FInalReport.pdf GlobSnow 2 Final Report No further details. information http://www.globsnow.info/index.php?page=Snow_Water_Equivalent ESA Globsnow SWE webpage No further details. information http://data.ceda.ac.uk/neodc/esa_globsnow/doc/GlobSnow-2_final_newsletter.pdf GlobSnow2 Final Newsletter No further details. information http://www.sciencedirect.com/science/article/pii/S0034425706000241 Basic Methodology: Jouni Pulliainen, Mapping of snow water equivalent and snow depth in boreal and sub-arctic zones by assimilating space-borne microwave radiometer data and ground-based observations, Remote Sensing of Environment, Volume 101, Issue 2, 30 March 2006, Pages 257-269, ISSN 0034-4257, http://dx.doi.org/10.1016/j.rse.2006.01.002. No further details. information http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4914809&tag=1 Snowmelt detection: M. Takala, J. Pulliainen, S. J. Metsamaki and J. T. Koskinen, "Detection of Snowmelt Using Spaceborne Microwave Radiometer Data in Eurasia From 1979 to 2007," in IEEE Transactions on Geoscience and Remote Sensing, vol. 47, no. 9, pp. 2996-3007, Sept. 2009. doi: 10.1109/TGRS.2009.2018442 No further details. information http://www.sciencedirect.com/science/article/pii/S0034425711003166 Implementation: Matias Takala, Kari Luojus, Jouni Pulliainen, Chris Derksen, Juha Lemmetyinen, Juha-Petri Kärnä, Jarkko Koskinen, Bojan Bojkov, Estimating northern hemisphere snow water equivalent for climate research through assimilation of space-borne radiometer data and ground-based measurements, Remote Sensing of Environment, Volume 115, Issue 12, 15 December 2011, Pages 3517-3529, ISSN 0034-4257, http://dx.doi.org/10.1016/j.rse.2011.08.014. No further details. information https://zenodo.org/record/7356945/files/GS2_SWE_ATBD.pdf SWE Algorithm Theoretical Basis No further details. information dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 SWE Data provided by the FMI as part of the CLIPC project in 2015.