Alaska Satellite Facility: Support for NOAA Satellite Remote ...
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Alaska Satellite Facility:Support for NOAA Satellite Remote Sensing
Scott ArkoDeputy Director
29 July 2008
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AK Environmental Satellite Workshop -- 29 Jul 08 Scott A. Arko 2
ASF Background
• ASF is a part of the Geophysical Institute at the University of Alaska Fairbanks
• Approximately 55 people supporting two large-scale data centers and a satellite ground station● Data downlink and satellite commanding● Data archival, processing and distribution● User/technical support and higher level product
development• Supporting NASA for over 15 years as the national SAR archive
and data center● >400TB of archived SAR data● Actively collecting data for ERS-2 and ALOS PALSAR
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AK Environmental Satellite Workshop -- 29 Jul 08 Scott A. Arko 3
ASF Core Components
• ASF Ground Station– Two X- and S-band tracking antennas for support of remote-
sensing spacecraft– Member of the NASA Ground Network
• Americas ALOS Data Node– Primary distribution point for ALOS users in North and South
America– Support customers throughout node area through network of
commercial and non-commercial distributors• ASF SAR Data Center
– Operate the national civilian SAR Data Center for NASA– Support active and archive missions for U.S. research users
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ASF Ground Station
ASF Receiving Mask
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ASF Support for NOAA
• Near-real-time (NRT) SAR data processing and distribution to National Ice Center and CLASS– Data required in less than 6 hours – Data generally provided in under 1.5 hours
• NRT production and distribution of SAR-based wind data • SAR data processing and distribution to NOAA
researchers• Supported NOAA’s Alaska SAR Demo showing SAR
utility in NOAA applications• Participate in the International Ice Charting Working
Group
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ASF NRT SAR Support for NOAA
0100200300400500600700800900
1000110012001300140015001600
Nu
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Dec
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Dec
-01
Dec
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Dec
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Dec
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Dec
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December 1996 to June 2008
Near Real Time (NRT)=<4 hrs
Near Real Time (NRT)>4 hrs
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ASF Data Production
10
100
1000
10000
100000
Aug 0
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ep 0
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03
Nov 0
3D
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3Jan 0
4F
eb 0
4M
ar
04
Apr
04
May 0
4Jun 0
4Jul 04
Aug 0
4S
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4O
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Nov 0
4D
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4Jan 0
5F
eb 0
5M
ar
05
Apr
05
May 0
5Jun 0
5July
05
Aug 0
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ep 0
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05
Nov 0
5D
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5Jan 0
6F
eb 0
6M
ar
06
Apr
06
May 0
6June 0
6July
06
Aug 0
6S
ep 0
6O
ct
06
Nov 0
6D
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6Jan 0
7F
eb 0
7M
ar
07
Apr
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May 0
7June 0
7July
07
Aug 0
7S
ep 0
7O
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07
Nov 0
7D
ec 0
7Jan-0
8F
eb-0
8M
ar-
08
Apr-
08
May-0
8Jun-0
8
L0 Products Processed L1 Products Produced
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Sea Ice
Ice Edge Sea Ice Leads
Bering Sea near the Aleutians Arctic Ocean
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Sea Ice
C-band RADARSAT-1 image L-band ALOS image
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NRT Support
NRT SAR provided to the U.S. Coast Guard
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Web Winds
Google .kmz files now available
http://wind.asf.alaska.edu
ASF Web page for wind products
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ALOS PALSAR Winds
Demonstration of wind retrieval from ALOS L-band data
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Arctic Mosaic
3-day mosaic of Western Arctic Ocean using ALOS PALSAR
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Conclusions
ASF has established a long-term relationship with NOAA to provide remote-sensing data for applications in Alaska
We look forward to further collaboration in support of the Alaska segment of the NOAA Satellite Proving Ground