Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data
SMMR data for the year 1979, 1980 and 1984 have been analyzed to determine the variability in the onset of melt for the Arctic seasonal sea ice zone. The results show melt commencing in either the Kara/Barents Seas or Chukchi Sea and progressing zonally towards the central Asian coast (Laptev Sea)....
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DigitalCommons@University of Nebraska - Lincoln
1987
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ftunivnebraskali:oai:digitalcommons.unl.edu:geosciencefacpub-1182 2023-11-12T04:14:01+01:00 Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data Anderson, Mark R. 1987-08-01T07:00:00Z application/pdf https://digitalcommons.unl.edu/geosciencefacpub/181 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1182/viewcontent/Anderson_1987_LSESSC_Snow_Melt_on_Sea_Ice_Surfaces_as_Determined_from_Passive_Microwave.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/geosciencefacpub/181 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1182/viewcontent/Anderson_1987_LSESSC_Snow_Melt_on_Sea_Ice_Surfaces_as_Determined_from_Passive_Microwave.pdf Papers in the Earth and Atmospheric Sciences Earth Sciences text 1987 ftunivnebraskali 2023-10-30T10:44:33Z SMMR data for the year 1979, 1980 and 1984 have been analyzed to determine the variability in the onset of melt for the Arctic seasonal sea ice zone. The results show melt commencing in either the Kara/Barents Seas or Chukchi Sea and progressing zonally towards the central Asian coast (Laptev Sea). Individual regions had interannual variations in melt onset in the 10-20 day range. To determine whether daily changes occur in the sea ice surface melt, the SMMR 18 and 37 GHz brightness temperature data are analyzed at day/night/twilight periods. Brightness temperatures illustrate diurnal variations in most regions during melt. In the East Siberian Sea, however, daily variations are observed in 1979, throughout the analysis period, well before any melt would usually have commenced. Understanding microwave responses to changing surface conditions during melt will perhaps give additional information about energy budgets during the winter to summer transition of sea ice. French abstract: Les données de SMMR pour les années 1979, 1980 et 1984 ont été analysées afin de déterminer la variabilité de la fonte des glaces saisonnières dans l'Arctique. Les résultats de cette analyse montrent que la fonte des glaces commence soit dans les mers de Kara/Barents ou dans la mer des Tchouktches et progresse zonalement vers la mer des Laptev. L'analyse a aussi montré des variations de la fonte des glaces de 10 à 20 jours suivant les régions. Afin de déterminer si les données de SMMR contiennent des variations journalières pendant la période de la fonte des glaces de surface, les température de brillance à 18 et 37 GHz ont été analysées pour des données de jour et de nuit. Les températures de brillance illustrent l'existence de variations journalières dans la plupart des régions analysées pendant la période de fonte. Cependant, dans l'est de la mer de Sibérie Orientale nos résultats indiquent des variations journalières pendant toute la période analysée (1979), c'est-à-dire avant le démarrage de l a fonte des glaces. Une meilleure ... Text Arctic Chukchi Chukchi Sea East Siberian Sea laptev Laptev Sea Mer de Sibérie orientale Mer des Tchouktches Sea ice Tchouktche* University of Nebraska-Lincoln: DigitalCommons@UNL Arctic Laptev Sea Chukchi Sea East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) |
institution |
Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Anderson, Mark R. Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data |
topic_facet |
Earth Sciences |
description |
SMMR data for the year 1979, 1980 and 1984 have been analyzed to determine the variability in the onset of melt for the Arctic seasonal sea ice zone. The results show melt commencing in either the Kara/Barents Seas or Chukchi Sea and progressing zonally towards the central Asian coast (Laptev Sea). Individual regions had interannual variations in melt onset in the 10-20 day range. To determine whether daily changes occur in the sea ice surface melt, the SMMR 18 and 37 GHz brightness temperature data are analyzed at day/night/twilight periods. Brightness temperatures illustrate diurnal variations in most regions during melt. In the East Siberian Sea, however, daily variations are observed in 1979, throughout the analysis period, well before any melt would usually have commenced. Understanding microwave responses to changing surface conditions during melt will perhaps give additional information about energy budgets during the winter to summer transition of sea ice. French abstract: Les données de SMMR pour les années 1979, 1980 et 1984 ont été analysées afin de déterminer la variabilité de la fonte des glaces saisonnières dans l'Arctique. Les résultats de cette analyse montrent que la fonte des glaces commence soit dans les mers de Kara/Barents ou dans la mer des Tchouktches et progresse zonalement vers la mer des Laptev. L'analyse a aussi montré des variations de la fonte des glaces de 10 à 20 jours suivant les régions. Afin de déterminer si les données de SMMR contiennent des variations journalières pendant la période de la fonte des glaces de surface, les température de brillance à 18 et 37 GHz ont été analysées pour des données de jour et de nuit. Les températures de brillance illustrent l'existence de variations journalières dans la plupart des régions analysées pendant la période de fonte. Cependant, dans l'est de la mer de Sibérie Orientale nos résultats indiquent des variations journalières pendant toute la période analysée (1979), c'est-à-dire avant le démarrage de l a fonte des glaces. Une meilleure ... |
format |
Text |
author |
Anderson, Mark R. |
author_facet |
Anderson, Mark R. |
author_sort |
Anderson, Mark R. |
title |
Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data |
title_short |
Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data |
title_full |
Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data |
title_fullStr |
Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data |
title_full_unstemmed |
Snow Melt on Sea Ice Surfaces as Determined from Passive Microwave Satellite Data |
title_sort |
snow melt on sea ice surfaces as determined from passive microwave satellite data |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
1987 |
url |
https://digitalcommons.unl.edu/geosciencefacpub/181 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1182/viewcontent/Anderson_1987_LSESSC_Snow_Melt_on_Sea_Ice_Surfaces_as_Determined_from_Passive_Microwave.pdf |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Laptev Sea Chukchi Sea East Siberian Sea |
geographic_facet |
Arctic Laptev Sea Chukchi Sea East Siberian Sea |
genre |
Arctic Chukchi Chukchi Sea East Siberian Sea laptev Laptev Sea Mer de Sibérie orientale Mer des Tchouktches Sea ice Tchouktche* |
genre_facet |
Arctic Chukchi Chukchi Sea East Siberian Sea laptev Laptev Sea Mer de Sibérie orientale Mer des Tchouktches Sea ice Tchouktche* |
op_source |
Papers in the Earth and Atmospheric Sciences |
op_relation |
https://digitalcommons.unl.edu/geosciencefacpub/181 https://digitalcommons.unl.edu/context/geosciencefacpub/article/1182/viewcontent/Anderson_1987_LSESSC_Snow_Melt_on_Sea_Ice_Surfaces_as_Determined_from_Passive_Microwave.pdf |
_version_ |
1782331764846362624 |