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Bera
Bera
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Kadir Şahbaz
Kadir Şahbaz
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I want to apply an algorithm to calculate the clorophyll-a concentration of a reservoir using sentinelSentinel 2.

To do this iI need to create a mask using sentinel'sSentinel's 2 band 11(infrared) to separate the water pixels from pixels with larger reflectance values than the water.

This is the algorithm:

(If B11 <=0.05 then 109.17*((1/B4-1/B5)*B6+ 19.03 else 0)

but iI can't use if and else in QGIS.

I want to apply an algorithm to calculate the clorophyll-a concentration of a reservoir using sentinel 2.

To do this i need to create a mask using sentinel's 2 band 11(infrared) to separate the water pixels from pixels with larger reflectance values than the water.

This is the algorithm:

(If B11 <=0.05 then 109.17*((1/B4-1/B5)*B6+ 19.03 else 0)

but i can't use if and else in QGIS.

I want to apply an algorithm to calculate the clorophyll-a concentration of a reservoir using Sentinel 2.

To do this I need to create a mask using Sentinel's 2 band 11(infrared) to separate the water pixels from pixels with larger reflectance values than the water.

This is the algorithm:

(If B11 <=0.05 then 109.17*((1/B4-1/B5)*B6+ 19.03 else 0)

but I can't use if and else in QGIS.

added 11 characters in body; edited tags; edited title
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PolyGeo ♦
PolyGeo ♦
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condinitional Conditional calculation using QgisQGIS

I want to apply an algorithm to calculate the clorophyll-a concentration of a reservoir using sentinel 2.To

To do this i need to create a mask using sentinel's 2 band 11(infrared) to separate the water pixels from pixels with larger reflectance values than the water.This

This is the algorithm: (If B11 <=0.05 then 109.17*((1/B4-1/B5)*B6+ 19.03 else 0).But

(If B11 <=0.05 then 109.17*((1/B4-1/B5)*B6+ 19.03 else 0)

but i can't use if and else in qgisQGIS.

condinitional calculation using Qgis

I want to apply an algorithm to calculate the clorophyll-a concentration of a reservoir using sentinel 2.To do this i need to create a mask using sentinel's 2 band 11(infrared) to separate the water pixels from pixels with larger reflectance values than the water.This is the algorithm: (If B11 <=0.05 then 109.17*((1/B4-1/B5)*B6+ 19.03 else 0).But i can't use if and else in qgis.

Conditional calculation using QGIS

I want to apply an algorithm to calculate the clorophyll-a concentration of a reservoir using sentinel 2.

To do this i need to create a mask using sentinel's 2 band 11(infrared) to separate the water pixels from pixels with larger reflectance values than the water.

This is the algorithm:

(If B11 <=0.05 then 109.17*((1/B4-1/B5)*B6+ 19.03 else 0)

but i can't use if and else in QGIS.

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kashi
kashi
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