Questions tagged [landsat-7]

The 7th satellite in the Landsat program.

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3
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0answers
342 views

From Landsat spectral radiance (W/m2*sr*µm) to Global horizontal irradiance (W/m2)? [closed]

We are working in a solar energy project to locate potential sites for solar panel farms. We are using the Landsat 7 panchromatic band to derive radiance with GRASS using i.landsat.toar (W/m2*sr*µm ...
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0answers
418 views

Landsat 7 SLC off gap-filling

Please suggest me how can I fill the gap of SLC off Landsat 7 data band 8 that is panchromatic band. Also suggest me is there any method to fill the gap of all other bands too.
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0answers
91 views

QGIS / Python differences in result [closed]

I am working on a script that automatically calculates something for me. To be sure, I checked the result of the calculation with QGIS. Here are the statistics: STATISTICS PYTHON-CODE: MAXIMUM = 0....
3
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1answer
301 views

can i comparing landsat 7 and landsat 8 thermal band?

can i comparing landsat 7 (band 6) and landsat 8 (band 10&11) thermal band? because landsat 8 only have 100m spatial resolution, so the output looks more general or blurr than landsat 7 thermal ...
2
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2answers
434 views

How to destripe the thermal band in SLC_off LandSat 7 ETM+ data?

I am working on a special study in one of my subject. My study would require me to extract land surface temperature each year for 2007-2014. Since LandSat 5 ceaseed to operate last 2011, my 2012-2014 ...
1
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0answers
130 views

About of low and high gain in Landsat for illuminate the scene

I don't know because after of make the calibration (only TOA) the false color composition (543 in Landsat 7) yet is different between 2 scenes. A scene looks opaque and another is clear (both are of ...
8
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1answer
1k views

Why does Landsat 8 panchromatic band NOT include the infrared? [duplicate]

The panchromatic band on Landsat 8 OLI sensor (band 8) covers a narrower portion of the spectrum than the corresponding band in Landsat 7 ETM+: 0.50 - 0.68 micrometers (L8 OLI) in contrast to 0.52 - 0....
1
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1answer
179 views

How to perform PCA with 2 different Landsat scenes

I want to perform PCA on 2 sheets of Landsat imagery with different acquisition time and coordinates. Prior to processing, should I combine both into one scene (mosaicking process)? If so, how is the ...
1
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1answer
499 views

create a vegetation mask using Landsat 7 [closed]

I'm working on a very large study area. The aim is to create a vegetation mask representing only pines. I'm using Landsat 7 images. Since the recordings were made in the winter it's pretty easy to ...
6
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1answer
2k views

Methods of cloud shadow detection for Landsat data?

Detecting clouds doesn't seem to be much of a problem, rather the challenge is in selecting cloud-shadow classes that don't also include coastal areas, agriculture, etc. For a project I'm working on, ...
5
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1answer
5k views

Landsat Observation Zenith and Azimuth Angles

I am doing a project with Landsat which needs to find out 2 Landsat images of the same area for different time, have both the same observation zenith and azimuth angles. But I can not find any ...
3
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1answer
6k views

Help with gap mask filling and Landsat 7 in ArcGIS 10

I have downloaded images from Landsat 7 ETM+ SLC-off with corresponding gap mask. Which is the best method for using it with ArcGIS 10? I tried the mask and statistical method described in ArcGIS ...
0
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4answers
826 views

Destriping landsat 7 images?

I want to work with landsat 7 images for land cover and NDVI evaluation. There are strips in the landsat images, and I don't know how to remote them. I have learned methods for gapfill but I don't ...
2
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3answers
6k views

EVI and SAVI indices for Landsat 7 and Landsat 8

I'm trying to run the indices Savi and EVI at landsat 7 & 8. About SAVI I read this from ESRI and explains very good this index. About SAVI I have a question, I will choose buy my self the L ...

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