Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data
The Special Sensor Microwave/Imager (SSM/I) instrument provides daily measures of microwave brightness temperatures (Tb) over the polar regions. Data are available from 1987 to the present and these data have a demonstrated utility for sea ice studies. In this paper we investigate applications to po...
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Byrd Polar Research Center, The Ohio State University.
1992
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ftohiostateu:oai:kb.osu.edu:1811/51368 2023-05-15T13:53:38+02:00 Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data Wilson, D. Jezek, K.C. Grace, S. Lampkin, D. 1992 application/pdf http://hdl.handle.net/1811/51368 en_US eng Byrd Polar Research Center, The Ohio State University. BPRC Technical Report No. 92-02. Wilson, D., K.C. Jezek, S. Grace and D. Lampkin. 1992. Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data. BPRC Technical Report No. 92-02, Byrd Polar Research Center, The Ohio State University, 66 pages. 1056-8050 http://hdl.handle.net/1811/51368 Special Sensor Microwave/Imager (SSM/I) Digital Elevation Model (DEM) Microwave brightness temperatures Polar ice sheets Technical Report 1992 ftohiostateu 2020-08-22T19:12:47Z The Special Sensor Microwave/Imager (SSM/I) instrument provides daily measures of microwave brightness temperatures (Tb) over the polar regions. Data are available from 1987 to the present and these data have a demonstrated utility for sea ice studies. In this paper we investigate applications to polar ice sheets with a view towards correlating patterns of Tb with ice sheet elevation. Our approach consists of combining SSM/I Tb values provided on CDROM by the National Snow and Ice Data Center with a digital elevation map (DEM) of Antarctica derived originally from the Scott Polar Research Institute Antarctic Map Folio. We focused on 37 GHz data which are mapped onto a 316 x 332 polar stereographic grid at 25-km resolution. The DEM consists of a 281 x 281 array of elevation values with a 20-km resolution. The DEM was resampled to be compatible with the SSM/I data set by transforming the elevation data from the original projection plane to geodetic coordinates. The elevation data were then transformed onto the SSM/I projection plane. Elevation data were interpolated to yield ice sheet surface heights at 25-km intervals coinciding with SSM/I point Tb assignments. By co-registering the two data sets, it is possible to 'drape' the brightness temperature data over the DEM. The resulting image highlights the relationship (and variations) between ice sheet topography and brightness temperature. A time series of merged data sets is presented in animated form that facilitates studies of the annual temperature cycle. Report Antarc* Antarctic Antarctica Ice Sheet National Snow and Ice Data Center Polar Research Scott Polar Research Institute Sea ice Ohio State University (OSU): Knowledge Bank Antarctic |
institution |
Open Polar |
collection |
Ohio State University (OSU): Knowledge Bank |
op_collection_id |
ftohiostateu |
language |
English |
topic |
Special Sensor Microwave/Imager (SSM/I) Digital Elevation Model (DEM) Microwave brightness temperatures Polar ice sheets |
spellingShingle |
Special Sensor Microwave/Imager (SSM/I) Digital Elevation Model (DEM) Microwave brightness temperatures Polar ice sheets Wilson, D. Jezek, K.C. Grace, S. Lampkin, D. Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data |
topic_facet |
Special Sensor Microwave/Imager (SSM/I) Digital Elevation Model (DEM) Microwave brightness temperatures Polar ice sheets |
description |
The Special Sensor Microwave/Imager (SSM/I) instrument provides daily measures of microwave brightness temperatures (Tb) over the polar regions. Data are available from 1987 to the present and these data have a demonstrated utility for sea ice studies. In this paper we investigate applications to polar ice sheets with a view towards correlating patterns of Tb with ice sheet elevation. Our approach consists of combining SSM/I Tb values provided on CDROM by the National Snow and Ice Data Center with a digital elevation map (DEM) of Antarctica derived originally from the Scott Polar Research Institute Antarctic Map Folio. We focused on 37 GHz data which are mapped onto a 316 x 332 polar stereographic grid at 25-km resolution. The DEM consists of a 281 x 281 array of elevation values with a 20-km resolution. The DEM was resampled to be compatible with the SSM/I data set by transforming the elevation data from the original projection plane to geodetic coordinates. The elevation data were then transformed onto the SSM/I projection plane. Elevation data were interpolated to yield ice sheet surface heights at 25-km intervals coinciding with SSM/I point Tb assignments. By co-registering the two data sets, it is possible to 'drape' the brightness temperature data over the DEM. The resulting image highlights the relationship (and variations) between ice sheet topography and brightness temperature. A time series of merged data sets is presented in animated form that facilitates studies of the annual temperature cycle. |
format |
Report |
author |
Wilson, D. Jezek, K.C. Grace, S. Lampkin, D. |
author_facet |
Wilson, D. Jezek, K.C. Grace, S. Lampkin, D. |
author_sort |
Wilson, D. |
title |
Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data |
title_short |
Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data |
title_full |
Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data |
title_fullStr |
Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data |
title_full_unstemmed |
Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data |
title_sort |
co-registration of a 1989 antarctic digital elevation model with ssm/i brightness temperature data and animation of time series data |
publisher |
Byrd Polar Research Center, The Ohio State University. |
publishDate |
1992 |
url |
http://hdl.handle.net/1811/51368 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet National Snow and Ice Data Center Polar Research Scott Polar Research Institute Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet National Snow and Ice Data Center Polar Research Scott Polar Research Institute Sea ice |
op_relation |
BPRC Technical Report No. 92-02. Wilson, D., K.C. Jezek, S. Grace and D. Lampkin. 1992. Co-registration of a 1989 Antarctic Digital Elevation Model with SSM/I Brightness Temperature Data and Animation of Time Series Data. BPRC Technical Report No. 92-02, Byrd Polar Research Center, The Ohio State University, 66 pages. 1056-8050 http://hdl.handle.net/1811/51368 |
_version_ |
1766258933546090496 |