Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3
This data set includes yearly snow melt onset dates over Arctic sea ice derived from brightness temperatures from the Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave/Imager (SSM/I), and the Special Sensor Microwave Imager/Sounder (SSMIS). The introduction of liquid wa...
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dataone:sha256:c869650d9c021c72f5aaec673b15e91bfa563dc67b153d5e4ee37c22339c5716 2024-06-03T18:46:36+00:00 Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center BEGINDATE: 1979-01-01T00:00:00Z ENDDATE: 2012-12-31T00:00:00Z 2023-11-28T23:46:33Z https://search.dataone.org/view/sha256:c869650d9c021c72f5aaec673b15e91bfa563dc67b153d5e4ee37c22339c5716 unknown Dataset dataone:urn:node:NSIDC 2024-06-03T18:20:13Z This data set includes yearly snow melt onset dates over Arctic sea ice derived from brightness temperatures from the Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave/Imager (SSM/I), and the Special Sensor Microwave Imager/Sounder (SSMIS). The introduction of liquid water to snow results in a sharp increase in the emissivity and hence brightness temperature of the snowpack. Snow melt onset is defined as the point in time when microwave brightness temperatures increase sharply due to the presence of liquid water in the snowpack. Data span the years 1979 through 2012 and are in a polar stereographic grid at 25 km resolution. The data are flat binary, 1-byte integer files and GIF images. Value-added data sets include the following for each pixel: mean melt onset date; latest (maximum) melt onset date; earliest (minimum) melt onset date; range of melt onset dates (the difference between maximum and minimum -- an index of variability); and standard deviation of melt onset date (another index of variability). Graphical representations of value-added data are also available. Dataset Arctic Sea ice Unknown Arctic |
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Open Polar |
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dataone:urn:node:NSIDC |
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description |
This data set includes yearly snow melt onset dates over Arctic sea ice derived from brightness temperatures from the Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave/Imager (SSM/I), and the Special Sensor Microwave Imager/Sounder (SSMIS). The introduction of liquid water to snow results in a sharp increase in the emissivity and hence brightness temperature of the snowpack. Snow melt onset is defined as the point in time when microwave brightness temperatures increase sharply due to the presence of liquid water in the snowpack. Data span the years 1979 through 2012 and are in a polar stereographic grid at 25 km resolution. The data are flat binary, 1-byte integer files and GIF images. Value-added data sets include the following for each pixel: mean melt onset date; latest (maximum) melt onset date; earliest (minimum) melt onset date; range of melt onset dates (the difference between maximum and minimum -- an index of variability); and standard deviation of melt onset date (another index of variability). Graphical representations of value-added data are also available. |
format |
Dataset |
author |
NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center |
spellingShingle |
NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 |
author_facet |
NASA National Snow and Ice Data Center Distributed Active Archive Center National Snow and Ice Data Center |
author_sort |
NASA National Snow and Ice Data Center Distributed Active Archive Center |
title |
Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 |
title_short |
Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 |
title_full |
Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 |
title_fullStr |
Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 |
title_full_unstemmed |
Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 |
title_sort |
snow melt onset over arctic sea ice from smmr and ssm/i-ssmis brightness temperatures, version 3 |
publishDate |
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url |
https://search.dataone.org/view/sha256:c869650d9c021c72f5aaec673b15e91bfa563dc67b153d5e4ee37c22339c5716 |
op_coverage |
BEGINDATE: 1979-01-01T00:00:00Z ENDDATE: 2012-12-31T00:00:00Z |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
_version_ |
1800868430430076928 |