<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-07-26T03:05:34Z</responseDate><request identifier="MODSCGDRF_NRT.001" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/MODSCGDRF_NRT.001</identifier><datestamp>2026-02-17T20:03:19Z</datestamp><setSpec>v0_daac</setSpec><setSpec>v0_all</setSpec><setSpec>nasa_nsidc_daac</setSpec></header><metadata>
<DIF xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.7.1.xsd"><Entry_ID>MODSCGDRF_NRT.001</Entry_ID><Entry_Title>Near Real-Time MODIS/Terra L3 Global Daily 500m SIN Grid Snow Cover, Grain Size, and Dust Radiative Forcing</Entry_Title><Data_Set_Citation><Dataset_Creator>Rittger, K., Brodzik, M. J., Hardman, M. A., Wilcox, H., Scott, D. J. &amp; Painter, T.</Dataset_Creator><Dataset_Title>Near Real-Time MODIS/Terra L3 Global Daily 500m SIN Grid Snow Cover, Grain Size, and Dust Radiative Forcing</Dataset_Title><Dataset_Release_Date>2024-04-24</Dataset_Release_Date><Dataset_Release_Place>Boulder, Colorado USA</Dataset_Release_Place><Dataset_Publisher>NASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center</Dataset_Publisher><Version>1</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.5067/HNVFRD5ICZN1</Dataset_DOI><Online_Resource>https://doi.org/10.5067/HNVFRD5ICZN1</Online_Resource><Dataset_Series_Name>MODSCGDRF_NRT</Dataset_Series_Name></Data_Set_Citation><Personnel><Role>Technical Contact</Role><First_Name>NSIDC</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><Fax>1-303-492-2468</Fax><Contact_Address><Address>CIRES, 449 UCB</Address><Address>University of Colorado</Address><City>Boulder</City><Province_or_State>CO</Province_or_State><Postal_Code>80309-0449</Postal_Code><Country>USA</Country></Contact_Address></Personnel><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>LAND ICE FRACTION</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>LAND SURFACE</Topic><Term>LAND USE/LAND COVER</Term><Variable_Level_1>ROCK FRACTION</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>LAND SURFACE</Topic><Term>LAND USE/LAND COVER</Term><Variable_Level_1>SHADE FRACTION</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>SNOW FRACTION</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>SNOW GRAIN SIZE</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>SNOW RADIATIVE FORCING</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>BIOSPHERE</Topic><Term>VEGETATION</Term><Variable_Level_1>VEGETATION FRACTION</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>VISIBLE SNOW DARKENING</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category><Keyword>MODIS-related project</Keyword><Sensor_Name><Short_Name>MODIS</Short_Name><Long_Name>Moderate-Resolution Imaging Spectroradiometer</Long_Name></Sensor_Name><Source_Name><Short_Name>Terra</Short_Name><Long_Name>Earth Observing System, Terra (AM-1)</Long_Name></Source_Name><Temporal_Coverage><Start_Date>2023-11-01</Start_Date></Temporal_Coverage><Temporal_Coverage><Start_Date>2025-04-01</Start_Date></Temporal_Coverage><Data_Set_Progress>active</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>-90</Southernmost_Latitude><Northernmost_Latitude>90</Northernmost_Latitude><Westernmost_Longitude>-180</Westernmost_Longitude><Easternmost_Longitude>180</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>CONTINENT</Location_Category><Location_Type>NORTH AMERICA</Location_Type><Location_Subregion1>UNITED STATES OF AMERICA</Location_Subregion1></Location><Location><Location_Category>CONTINENT</Location_Category><Location_Type>AUSTRALIA/NEW ZEALAND</Location_Type><Location_Subregion1>NEW ZEALAND</Location_Subregion1></Location><Location><Location_Category>CONTINENT</Location_Category><Location_Type>SOUTH AMERICA</Location_Type><Location_Subregion1>CHILE</Location_Subregion1></Location><Data_Resolution><Latitude_Resolution>500 meters</Latitude_Resolution><Longitude_Resolution>500 meters</Longitude_Resolution><Temporal_Resolution>1 day</Temporal_Resolution></Data_Resolution><Access_Constraints>These data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).</Access_Constraints><Use_Constraints>These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/data-use-and-copyright. For more information on the NASA EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.</Use_Constraints><Data_Set_Language>English</Data_Set_Language><Originating_Center>NASA NSIDC DAAC</Originating_Center><Data_Center><Data_Center_Name><Short_Name>NASA NSIDC DAAC</Short_Name><Long_Name>NASA National Snow and Ice Data Center Distributed Active Archive Center</Long_Name></Data_Center_Name><Data_Center_URL>https://nsidc.org/daac</Data_Center_URL><Personnel><Role>Data Center Contact</Role><First_Name>NSIDC</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><Contact_Address><Address>National Snow and Ice Data Center</Address><Address>CIRES, 449 UCB</Address><Address>University of Colorado</Address><City>Boulder</City><Province_or_State>CO</Province_or_State><Postal_Code>80309-0449</Postal_Code><Country>USA</Country></Contact_Address></Personnel></Data_Center><Distribution><Distribution_Media>HTTPS</Distribution_Media><Distribution_Format>netCDF-4</Distribution_Format></Distribution><Reference/><Summary><Abstract>This data set represents an updated version of the MODIS Snow Covered Area and Grain-size (MODSCAG) and MODIS Dust Radiative Forcing in Snow (MODDRF) data sets previously produced by the NASA Jet Propulsion Laboratory (JPL). Data are derived from NASA LANCE near real-time MODIS/Terra surface reflectance data (&lt;a href="https://lance.modaps.eosdis.nasa.gov/modis/"&gt;MOD09GA_NRT&lt;/a&gt;) but are not themselves near real-time, nor part of NASA LANCE. This data set contains the following parameters: snow fraction, snow grain size (from the SCAG algorithm), vegetation fraction, rock fraction, ice fraction, shade fraction, deltavis, radiative forcing, and optical snow grain size (from the DRFS algorithm). Data are available from 1 November 2023 to the present for 18 regions in North America, and from 01 April 2025 to present over the South Island of New Zealand and the Andes mountains in Chile. Additional tiles will be added over time until global coverage is reached. These data are provided in netCDF format.</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>https://doi.org/10.5067/HNVFRD5ICZN1</URL><Description>User's Guide</Description></Related_URL><Related_URL><URL_Content_Type><Type>GET DATA</Type></URL_Content_Type><URL>https://daacdata.apps.nsidc.org/pub/DATASETS/MODSCGDRF_NRT_v1.1/</URL><Description>HTTPS</Description></Related_URL><Metadata_Name>CEOS IDN DIF</Metadata_Name><Metadata_Version>VERSION 9.9</Metadata_Version><DIF_Creation_Date>2024-04-24</DIF_Creation_Date><Last_DIF_Revision_Date>2026-02-17</Last_DIF_Revision_Date><Extended_Metadata><Metadata><Group>NSIDC</Group><Name>Version Summary</Name><Value>Initial release</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Minor Version</Name><Value><number>1</number><summary>Updated to new format (netCDF) and addition of new spatial coverage</summary><start_datetime>2023-11-01</start_datetime><end_datetime/><view_order>0</view_order></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Current Version</Name><Value>1</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Level of Service</Name><Value><Level>Basic</Level></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Full Dataset Citation</Name><Value>Rittger, K., Brodzik, M. J., Hardman, M. A., Wilcox, H., Scott, D. J. &amp; Painter, T. (2024). &lt;i&gt;Near Real-Time MODIS/Terra L3 Global Daily 500m SIN Grid Snow Cover, Grain Size, and Dust Radiative Forcing&lt;/i&gt;. (MODSCGDRF_NRT, Version 1). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. &lt;a href="https://doi.org/10.5067/HNVFRD5ICZN1"&gt;https://doi.org/10.5067/HNVFRD5ICZN1&lt;/a&gt;. 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