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edited Jul 6, 2021 at 16:45

Bárbara Costa

1
1

I'm working with Aster data in GEE and it's necessary to convert radiance in surface Reflectance values. I've tried to convert DN to TOA values, like this:. It works. But I'm a little confused about convert TOA values to BOA values. I know that it's necessary to apply the atmospheric correction. I've looked around for the best model for ASTER data in GEE, but I didn't find a good solution yet

var aster1 = ee.Image('ASTER/AST_L1T_003/20000507134140');
var gainRED = aster1.get('GAIN_COEFFICIENT_B02');
print(gainRED);
var rad_RED = ee.Image('ASTER/AST_L1T_003/20000507134140')
                  .select('B02')
                  .subtract(1)
                  .multiply(0.708);
print(rad_RED);
Map.addLayer(rad_RED);

I'm working with Aster data in GEE and it's necessary to convert radiance in surface Reflectance values. I've tried to convert DN to TOA values, like this:

var aster1 = ee.Image('ASTER/AST_L1T_003/20000507134140');
var gainRED = aster1.get('GAIN_COEFFICIENT_B02');
print(gainRED);
var rad_RED = ee.Image('ASTER/AST_L1T_003/20000507134140')
                  .select('B02')
                  .subtract(1)
                  .multiply(0.708);
print(rad_RED);
Map.addLayer(rad_RED);

I'm working with Aster data in GEE and it's necessary to convert radiance in surface Reflectance values. I've tried to convert DN to TOA values, like this. It works. But I'm a little confused about convert TOA values to BOA values. I know that it's necessary to apply the atmospheric correction. I've looked around for the best model for ASTER data in GEE, but I didn't find a good solution yet

var aster1 = ee.Image('ASTER/AST_L1T_003/20000507134140');
var gainRED = aster1.get('GAIN_COEFFICIENT_B02');
print(gainRED);
var rad_RED = ee.Image('ASTER/AST_L1T_003/20000507134140')
                  .select('B02')
                  .subtract(1)
                  .multiply(0.708);
print(rad_RED);
Map.addLayer(rad_RED);

Post Reopened by TomazicM, MrXsquared, Kadir Şahbaz, Babel, Erik

occurred Jul 2, 2021 at 9:27

added 385 characters in body

Source Link

edited Jul 1, 2021 at 17:00

Bárbara Costa

1
1

I'm working with Aster data in GEE and it's necessary to convert radiance in surface Reflectance values. I've tried to convert DN to TOA values, like this:

var aster1 = ee.Image('ASTER/AST_L1T_003/20000507134140');
var gainRED = aster1.get('GAIN_COEFFICIENT_B02');
print(gainRED);
var rad_RED = ee.Image('ASTER/AST_L1T_003/20000507134140')
                  .select('B02')
                  .subtract(1)
                  .multiply(0.708);
print(rad_RED);
Map.addLayer(rad_RED);

I'm working with Aster data in GEE and it's necessary to convert radiance in surface Reflectance values.

I'm working with Aster data in GEE and it's necessary to convert radiance in surface Reflectance values. I've tried to convert DN to TOA values, like this:

var aster1 = ee.Image('ASTER/AST_L1T_003/20000507134140');
var gainRED = aster1.get('GAIN_COEFFICIENT_B02');
print(gainRED);
var rad_RED = ee.Image('ASTER/AST_L1T_003/20000507134140')
                  .select('B02')
                  .subtract(1)
                  .multiply(0.708);
print(rad_RED);
Map.addLayer(rad_RED);

Post Closed as "Not suitable for this site" by Vince, LaughU, MrXsquared, TomazicM, Babel

occurred Jul 1, 2021 at 14:35

title statement & case; naming

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edited Jul 1, 2021 at 12:59

Vince

20.3k
16
48
65

How can I convert Converting Aster L1T data radiance to Surface Reflectancesurface reflectance in Google Earth Engine?

I'm working with asterAster data in geeGEE and it's necessary to convert radiance in surface Reflectance values.

Source Link

asked Jul 1, 2021 at 12:39

Bárbara Costa

1
1

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How can I convert Converting Aster L1T data radiance to Surface Reflectancesurface reflectance in Google Earth Engine?

How can I convert Aster L1T data radiance to Surface Reflectance in Google Earth Engine?

Converting Aster L1T data radiance to surface reflectance in Google Earth Engine