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Showing posts from February, 2008

Sulu Sea Satellite Images! 27 Feb 2008

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Northern Borneo Satellite Images! 23 Feb 2008

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Very high chlorophyll a spot located off shore with strong nLw 551 absorption (114.5E 6.5N).

Malacca Straits and Andaman Sea Satellite Images! 22 Feb 2008

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Sulu Sea Satellite Images! 22 Feb 2008

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Northern Bornoe Satellite Images! 22 Feb 2008

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Sulu Sea Satellite Images! 21 Feb 2008

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MODIS Satellite Images available for FTP now from Tokyo University

Vietnam MODIS Satellite Images from Yasuoka and Takeuchi Lab, The University of Tokyo

Prof Takeuchi from Institute of Industrial Science, University of Tokyo has provided the Daily Level 2 MODIS satellite on the following FTP site

ftp://webmodis.iis.u-tokyo.ac.jp/UNU/

Naming rule is as follows:
MXDYYYYMMDDhhmm-VAR-GEO
MXD: MOD->Terra, MYD->Aqua
YYYY: year
MM: month
DD: day
hh: hour in UTC
mm: minute
VAR: variables (chlor_a, sst, nLW_551 and K_490)
GEO: geographical location
All data are packed in 16bit signed inter (INT16) in little endian.

Following scaling factor (a) is used to get original value (y) from pixel value (x) on each parameter respevtively.
y = a * x
Chloroplyll-a: 0.0001
SST: 0.005 (Celcius degrees)
normalized water leaving radiance at 551nm: 0.001
diffuse attenuation coefficient at 490nm: 0.0002

If you are using Seadas or ENVI to display the Vietnam MODIS image, it will be input as flat file. Some detail information is needed to read the file. Following are the example for Seadas:
1.…

Malacca Straits and Andaman Sea Satellite Images! 17 Feb 2008

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Sulu Sea Images! 8 Feb 2008

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Borneo Images! 7 Feb 2008

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A very dense chlorophyll a with low nLw 551 spot is found off shore. Due to strong absorption at the blue-green band, the water color at this area could be changed.

Malacca Straits and Andaman Sea Images! 7 Feb 2008

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Sulu Sea Images! 7 Feb 2008

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Borneo Images! 6 Feb 2008

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Malacca Straits and Andaman Sea Images! 6 Feb 2008

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