Infrared Cloud Imager Cloud Cover Time Series
The Infrared Cloud Imager (ICI) was deployed at Barrow, AK from 13 July 2012 through 22 July 2014. This imager uses a thermal infrared camera with a 110 degree (diagonal) field of view and 1.25 aspect ratio to image the overhead sky in the 8 to 14 micron band. By removing the clear-sky radiance from...
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Arctic Data Center
2015
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Online Access: | https://doi.org/10.18739/A2QM0W |
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dataone:doi:10.18739/A2QM0W 2024-06-03T18:46:32+00:00 Infrared Cloud Imager Cloud Cover Time Series NSF Arctic Data Center ARCTIC OCEAN, ARCTIC OCEAN > CHUKCHI SEA, CONTINENT > NORTH AMERICA, VERTICAL LOCATION > TROPOSPHERE, ARCTIC OCEAN > BEAUFORT SEA, UNITED STATES OF AMERICA, GEOGRAPHIC REGION > ARCTIC, UNITED STATES OF AMERICA > ALASKA, ENVELOPE(-156.616,-156.616,71.324,71.324) BEGINDATE: 2012-07-13T00:00:00Z ENDDATE: 2013-07-22T00:00:00Z 2015-10-15T00:00:00Z https://doi.org/10.18739/A2QM0W unknown Arctic Data Center EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD OPTICAL DEPTH/THICKNESS EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD RADIATIVE TRANSFER EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES EARTH SCIENCE > ATMOSPHERE > CLOUDS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS > BOLOMETERS MANNED PERMANENT STATION MANNED FIELD STATION IMAGE POINT LESS THAN 1 METER 1 MINUTE TO 1 HOUR environment Dataset 2015 dataone:urn:node:ARCTIC https://doi.org/10.18739/A2QM0W 2024-06-03T18:08:13Z The Infrared Cloud Imager (ICI) was deployed at Barrow, AK from 13 July 2012 through 22 July 2014. This imager uses a thermal infrared camera with a 110 degree (diagonal) field of view and 1.25 aspect ratio to image the overhead sky in the 8 to 14 micron band. By removing the clear-sky radiance from the image, the remaining residual radiance is used to identify and classify clouds. For this current data stream the images have been processed to provide cloud fraction (fractional coverage by clouds across the imager's field of view), and cloud optical depth (spatial average of OD across the field of view including both clouds and clear sky). Additional information breaks Cloud fraction down into three categories thick clouds (cloud optical depth estimate of 2 or greater), thin clouds (cloud optical depth estimate between 1 and 2), and very thin clouds (cloud optical depth estimate between 0.25 and 1). Dataset Arctic Arctic Ocean Barrow Beaufort Sea Chukchi Chukchi Sea Alaska Arctic Data Center (via DataONE) Arctic Arctic Ocean Chukchi Sea Image Point ENVELOPE(-132.002,-132.002,53.245,53.245) ENVELOPE(-156.616,-156.616,71.324,71.324) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD OPTICAL DEPTH/THICKNESS EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD RADIATIVE TRANSFER EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES EARTH SCIENCE > ATMOSPHERE > CLOUDS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS > BOLOMETERS MANNED PERMANENT STATION MANNED FIELD STATION IMAGE POINT LESS THAN 1 METER 1 MINUTE TO 1 HOUR environment |
spellingShingle |
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD OPTICAL DEPTH/THICKNESS EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD RADIATIVE TRANSFER EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES EARTH SCIENCE > ATMOSPHERE > CLOUDS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS > BOLOMETERS MANNED PERMANENT STATION MANNED FIELD STATION IMAGE POINT LESS THAN 1 METER 1 MINUTE TO 1 HOUR environment NSF Arctic Data Center Infrared Cloud Imager Cloud Cover Time Series |
topic_facet |
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD OPTICAL DEPTH/THICKNESS EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD RADIATIVE TRANSFER EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES EARTH SCIENCE > ATMOSPHERE > CLOUDS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > THERMAL/RADIATION DETECTORS > BOLOMETERS MANNED PERMANENT STATION MANNED FIELD STATION IMAGE POINT LESS THAN 1 METER 1 MINUTE TO 1 HOUR environment |
description |
The Infrared Cloud Imager (ICI) was deployed at Barrow, AK from 13 July 2012 through 22 July 2014. This imager uses a thermal infrared camera with a 110 degree (diagonal) field of view and 1.25 aspect ratio to image the overhead sky in the 8 to 14 micron band. By removing the clear-sky radiance from the image, the remaining residual radiance is used to identify and classify clouds. For this current data stream the images have been processed to provide cloud fraction (fractional coverage by clouds across the imager's field of view), and cloud optical depth (spatial average of OD across the field of view including both clouds and clear sky). Additional information breaks Cloud fraction down into three categories thick clouds (cloud optical depth estimate of 2 or greater), thin clouds (cloud optical depth estimate between 1 and 2), and very thin clouds (cloud optical depth estimate between 0.25 and 1). |
format |
Dataset |
author |
NSF Arctic Data Center |
author_facet |
NSF Arctic Data Center |
author_sort |
NSF Arctic Data Center |
title |
Infrared Cloud Imager Cloud Cover Time Series |
title_short |
Infrared Cloud Imager Cloud Cover Time Series |
title_full |
Infrared Cloud Imager Cloud Cover Time Series |
title_fullStr |
Infrared Cloud Imager Cloud Cover Time Series |
title_full_unstemmed |
Infrared Cloud Imager Cloud Cover Time Series |
title_sort |
infrared cloud imager cloud cover time series |
publisher |
Arctic Data Center |
publishDate |
2015 |
url |
https://doi.org/10.18739/A2QM0W |
op_coverage |
ARCTIC OCEAN, ARCTIC OCEAN > CHUKCHI SEA, CONTINENT > NORTH AMERICA, VERTICAL LOCATION > TROPOSPHERE, ARCTIC OCEAN > BEAUFORT SEA, UNITED STATES OF AMERICA, GEOGRAPHIC REGION > ARCTIC, UNITED STATES OF AMERICA > ALASKA, ENVELOPE(-156.616,-156.616,71.324,71.324) BEGINDATE: 2012-07-13T00:00:00Z ENDDATE: 2013-07-22T00:00:00Z |
long_lat |
ENVELOPE(-132.002,-132.002,53.245,53.245) ENVELOPE(-156.616,-156.616,71.324,71.324) |
geographic |
Arctic Arctic Ocean Chukchi Sea Image Point |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea Image Point |
genre |
Arctic Arctic Ocean Barrow Beaufort Sea Chukchi Chukchi Sea Alaska |
genre_facet |
Arctic Arctic Ocean Barrow Beaufort Sea Chukchi Chukchi Sea Alaska |
op_doi |
https://doi.org/10.18739/A2QM0W |
_version_ |
1800867572788232192 |