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Spatial Extent:

Amazonia

Spatial Resolution:

1, 4, 8 km

Temporal Characteristics:

 
Date Classes Represented:

Time-Series
Time Steps Available:

30 min. to 3 hours
Dates represented:

March 1998 to February 2001

 

Acknowledge Florida State University as the data provider and the University of New Hampshire, EOS-WEBSTER Earth Science Information Partner (ESIP) as the data distributor when using the data in subsequent models or publications.

 

Summary:

These data are provided by Florida State University for use by LBA-Ecology Science Teams. The GOES 8 imager has five spectral bands, which can be ordered separately. Additionally, corresponding Latitude/Longitude files are provided for each band. These GOES data and Lat./Lon. files are relatively large, so please consider this when ordering the data. These data are being provided in support of the LBA-Ecology program and are intended for scientists who know how to work with this type of data.

Further information about the file format will appear in the future. If you have trouble reading these binary datasets, contact User Support with your question.

This archive contains data from March 1998 to February 2001.

The GOES 8 satellite has five spectral bands as shown in the table below. Additionally, the associated latitude and longitude files for the bands are described below. The lat/lon files are available for download when you place an order for GOES data.

Band Spectral Region Wavelength
(micrometers)		 File Size
1 Visible 0.65 (0.52 - 0.72) 14 MB
2 Near infrared window 3.9 (3.78 - 4.03) 1 MB
3 6.7 micron water vapor 6.7 (6.47 - 7.02) 0.5 MB
4 Thermal infrared window (clean) 11.0 (10.2 - 11.2) 1 MB
5 Thermal infrared window (dirty) 12.0 (11.5 - 12.5) 1 MB
Associated Latitude/Longitude Files
Use For Goes Data... Files File Size Use For Bands...
Before June 17, 1998 A981411145ir2.ltln.bin 6.6 MB GOES bands 2,4,5
A981411145ir3.ltln.bin 3.3 MB GOES band 3
A981411145vis.ltln.bin 106.2 MB GOES band 1
June 17, 1998 - March 5, 1999 A981681445ir3.ltln.bin 3.5 MB GOES band 3
A981681445ir4.ltln.bin 7.0 MB GOES bands 2,4,5
A981681445vis.ltln.bin 111.2 MB GOES band 1
After March 5, 1999 A990641945ir2.ltln.bin 7.0 MB GOES bands 2,4,5
A990641945ir3.ltln.bin 3.5 MB GOES bands 3
A990641945vis.ltln.bin 111.2 MB GOES band 1

The GOES images are in swath format and the satellite is geostationary. Due to satellite repositioning, there are three sets of lat/lon files: one prior to June 17, 1998; one for June 17, 1998 through March 5, 1999; and one set for after March 5, 1999. Therefore, you only need one set of lat-lon files, depending on the date of the data you download. Please be sure to download the appropriate lat/lon files for your data.

Please be aware that the file sizes of some of these data are very large,
you may wish to order them via CD or 8 mm UNIX tape.


Please Note: Some files will be named aaa991431145.vis instead of A991431145.VIS; for example. The aaa files have an additional array of quality indicators for each row in the swath after the reflectance values.


SPATIAL COVERAGE
The images cover the area from about 5 N - 16 S and 40 W - 75 W at full spatial resolution (1,4,8,4,4 km). Because of the differences in resolution, there are three sets of latitude and longitude data corresponding to: the visible band; any of band 2, 4 or 5; and one other for band 3.

TEMPORAL COVERAGE
Our temporal coverage begins in March 1998, and extends forward up to the point that we have imported data. There are two intensive archiving periods each year. One is from March 1 to April 30 (wet season); while the other is from August 1 to September 30 (dry season). During these intensive archiving periods, images are acquired every half hour or every hour. Outside these intensive periods, images are acquired every three hours; at 2:45, 5:45:, 8:45, 11:45, 14:45, 17:45, 20:45, and 23:45 UTC.

QUALITY CODE
Visible band data have a quality label of g if less than 5% bad lines appear, m if between 5% and 20% bad lines appear and b is more than 20% bad lines appear. View our Quality Tables


HOW TO READ GOES DATA


FURTHER INFORMATION
There is a datasite maintained by Florida State University with a little more information on the data and some images of current (about 3 days inventory) GOES 8 viewable images of the Amazon. You can access it at http://metsat.met.fsu.edu/LBA/.

Data Providers:

Florida State University

Latest Data Update:

11/21/2000

Last Doc. Updated:

February, 2001

Doc. Updated By:

Shannon Spencer

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