Questions tagged [landsat-8]

Use this tag when asking question related to the 8th satellite in the Landsat program.

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2
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1answer
654 views

Clipping of a Raster changes Range of Cell Values

I'm facing a strange problem. I created a mosaic of two landsat scenes which contains values from ~ -5 to ~11 (Biomass estimation). As my study area is much smaller then the mosaiced Landsat8 scenes, ...
2
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2answers
499 views

Landsat 8 cloud detection without band 9

What is the best possible way to create a cloud mask of a Landsat 8 scene without using band 9? I think the best way will be to determine the cloud cover by thresholding in the Panchromatic band and ...
5
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1answer
426 views

Land Use classification and canopy cover using LT8 imagery and ground truth points in QGIS

I am trying to run a land use classification with QGIS on LANDSAT8 imagery to classify the various land uses within an area of northern Vietnam. I want to distinguish between primary forest, ...
0
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2answers
5k views

Removing cloud cover on LandSat 8 imagery using ArcGIS for Desktop? [closed]

How can I remove cloud cover on landsat8 imagery? using ArcGis10.2
0
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1answer
1k views

Converting Landsat 8 to TOA for NDWI calculation

I am trying to use Landsat to identify small-scale water bodies in Eastern Africa. I first pansharpened a composite image of bands 2-7 to improve the resolution. Bands 2-4 are now at a resolution of ...
3
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1answer
434 views

QGIS raster calculator: difference gives NaN for Landsat 8 scene

I'm strugling with the QGIS Raster Calculator, trying to get a NDVI image from a Landsat 8 scene (path 222, row 84, date 2015-11-15). The problem is, I'm consistently getting NaN values for all the ...
1
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1answer
318 views

Different band file format when downloading Landsat 8 from earthexplorer

When downloading Landsat 8 OLI/TIRS Land Surface Reflectance from the USGS earthexplorer service, the usual archive has the following files in it : LC82330672013150LGN00_B10.TIF ...
2
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1answer
1k views

How to remove clouds with the cf_mask.tif file provided from landsat 8 surface reflectance data?

I just downloaded my first group of landsat 8 surface reflectance data files. In this package contains sr bands 1-7 (I hope to use some of these to create an NDVI) as well as numerous files called: ...
1
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1answer
271 views

Maximum Liklihood Image Classification; Does this algorithm consider RGB Band values only?

if it is correct that Maximum Liklihood classification algorithm takes into account RGB values of the bands only, then is it useless to stack other bandslike NIR SWIR etc prior to go ahead and use ...
4
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1answer
562 views

Maximum Solar Zenith Angle for Landsat-8 images

Heliosynchronous satellites enter a darkness region at high latitude in winter. They are most of the time programmed not the capture an image when the solar zenith angle becomes too large because the ...
3
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0answers
696 views

How to create an annual NDVI from Landsat 8 imagery [closed]

I am relatively new to GIS. I am studying wildlife (I have collar data that lasts a year) and my supervisor and I would like to create an annual NDVI map for my projected area. I was able to ...
1
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2answers
2k views

Landsat 8 OLI Tasseled Cap Transformation Calculation ArcGIS 10.3

I need to calculate the TCT greenness for Landsat 8 OLI imagery and having a hard time finding a tool. All the python scripts I have found do not work and I am not experienced with Python at all. ...
1
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1answer
404 views

Why does a Landsat 8 band not load into QGIS SCP plugin?

A 2015 Landsat 8 band 2 does not load into QGIS' Semi-automatic Classification Plugin window when wanting to clip multiple raster bands. Bands are loaded from Table of Contents (TOC) as displayed ...
2
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0answers
134 views

Layer Stack 6 Landsat8 bands

I have 6 images from Landsat 8 (Green,Red,NIR,SWIR1,SWIR2,NDVI). When I want to layerstack them with "Merge" I always get a result tif which is just black and white, however I can see that all 6 bands ...
2
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1answer
2k views

From where can I get Landsat 7 and Landsat 8 metadata files?

I downloaded satellite images but mtl files were not in the zip. I searched a lot but i dint get from where to download mtl files. I need to convert radiance to temperature in both L7 and L8 images.
3
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2answers
159 views

Pansharpening influence on analysis

Using as an example Landsat 8 bands: Does pansharpening band enhace only visible range and therefore can I use it only for analysis connected with visible spectrum? Or I can pansharpen every possible ...
0
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0answers
221 views

How to export training area information?

I did a supervised classification of a whole Landsat 8 image with 700 Rois (training areas) with the Semi Automatic Classification Plugin. I want to export the class names, the coordinates and the ...
1
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0answers
194 views

Why are Landsat-8 derived NDVI values higher than SAVI values?

I have calculated NDVI and SAVI vegetation indices for a landsat-8 image. I am unexpectedly getting higher values for the NDVI than SAVI. What may be causing these unusual results? NDVI=0.46 SAVI=0....
1
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1answer
272 views

Higher NDVI than SAVI [duplicate]

I have calculated NDVI and SAVI for landsat-8 image. But I am getting higher value of NDVI than SAVI Can you tell me reason for this NDVI=0.46 SAVI=0.34 Specific band pixel values are toa b4- 0.130 ...
-1
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1answer
405 views

Estimation of Land Surface Temperature using ENVI 5.2

I am doing research about land surface temperature using Landsat 8 image. However, I have a problem with them. I have read literature but i can not do it in ENVI 5.2. Could you help me step-by-...
3
votes
3answers
377 views

Patching a large number of Landsat 8 scenes together

I need to extract land cover information (vegetation, water bodies, etc.) using Landsat 8 scenes. I have to extract the information on a country scale which means that I have about 15 scenes (...
4
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0answers
533 views

How to remove black pixels in Landsat image

Does anyone know how I can remove these black pixels around the edge of this Landsat image? They appeared when I layer-stacked the bands in ERDAS IMAGINE - they were not there in the separate band ...
2
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1answer
417 views

Landsat 8 dataset processing in batch?

I´m trying to open Landsat images at Geotiff with metadata in ENVI. I have a dataset of 101 Landsat 8 images and I want to open all the images and then save them to do some band math either on ...
1
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2answers
491 views

i.landsat.toar not working and returning error [duplicate]

First time using grass. I need to convert DN to reflectance. Imagery -> Sat. images tools-> i.landsat.toar. But when I add raster name. I get error. Im using landsat 8 images WARNING: WARNING: ESUN ...
1
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1answer
492 views

Landsat 8 reflectance calibration

I am calibrating my landsat data to reflectance with correction for sun angle. I just want to know if sun angle is computed as such θsin(sun_elev), where sun_elev is the sun elevation value specified ...
1
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1answer
733 views

Pan-sharpening Landsat 8 with 5 bands

I use bands 654 for vegetation classification and bands 432 to prepare the map layout. Is there a way to pan-sharpen the landsat 8 image using the bands 65432 ? So I swicth the GRB to classify and to ...
1
vote
1answer
279 views

How to attach latitude and longitude values to pixels values in ArcGIS?

I am trying to create space time cubes of LANDSAT 8 images in ArcGIS. The space time cubes can be created using only feature classes, so I need to convert from TIFF to pixel values with Dates and ...
2
votes
2answers
586 views

Java packages for landsat 8 processing?

I am looking for the same packages as outlined in this question - Are there Python packages for Landsat 8 processing? except that I want these in Java. Any Open Source packages out there that can do ...
1
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1answer
703 views

Black edge (NoData pixels) in Landsat 8 color correction in ERDAS

My boss asked me to mosaic and color-balance multiple Landsat 8 tiles for presentation. I tried to do that in ERDAS but it returned weird result as below: Obviously it's the black edges or nodata ...
0
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1answer
332 views

Comparison of wildfires areas using NBR index obtained by Landsat 8 for 2 dates?

My aim is to compare two images of NBR index obtained by Landsat 8 for two dates: April the 1st and October the 26th (the beginning of the wildfires period and the ending of the period). After that I ...
1
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0answers
58 views

Issues related to lack of Landsat 8 Metadata usage in i.landsat.toar run [duplicate]

In my application of i.landsat.toar, I am coming across an issue for which there is previous precedence. LANDSAT 8 i.landsat.toar error GRASS 7 Computer Basics: Data Used: Landsat 8; Operating ...
1
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2answers
1k views

LANDSAT 8 i.landsat.toar error GRASS 7

I am a bit new to GRASS, but I have managed to get a lot of good work done thus far. However, the following error is really throwing me off, because I can't find any help anywhere for it. I am using ...
2
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2answers
149 views

Regarding Landsat 8 QA image color

As par the USGS page explaining the 8 bit quality image in following link: http://landsat.usgs.gov/LandsatLookImages.php Water is represented by bit 3 [Translated to color range (8 -15)] and Snow/ ...
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0answers
484 views

Landsat 8 - NDVI Global Servises - Clouds

I'm looking for Landsat 8 NDVI Global Services, like ArcGIS Online, but including scenes with the high presence of clouds (50-95%). Fresh scenes with clouds needed because they can contain the areas ...
0
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1answer
364 views

Landsat 8 - Surface reflectance panchromatic band ?

I ordered landsat 8 surface reflectance high level data products via Espa: http://espa.cr.usgs.gov/ordering/new. Is it correct that there is no surface reflectance panchromatic band available after ...
0
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2answers
1k views

how to remove cloud values of Landsat image from R [closed]

How can I remove cloud value of the Landsat8? How can I estimate cloud values for eg: modis cloud values are from 700 to 800. By using R how can I estimate>
0
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2answers
991 views

Landsat8 NDVI values not in the -1 to 1 range

I was trying to create an NDVI from Landsat8 OLI image from July 2013. I ran DOS1 and TOA. The values range up to 3. The original files were downloaded from EarthExplorer(EE), ran on QGIS and ...
2
votes
1answer
2k views

Difference between a spectroradiometer and multispectral sensor

Let's take as an example of a spectroradiometer MODIS, and as an example of a multispectral sensor the Landsat8 (OLI). What is the difference between these two sensors? Should we compare a ...
2
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1answer
349 views

change detction for landsat-8 and landsat-5 images

Can anyone help me in suggesting methods for change detection for landsat-8 and landsat-5 images? The software that I am using is ArcMap 10.2 and i need to find the increase in builtup area from the ...
1
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0answers
247 views

Enhancing/smoothing Landsat 8 image using ArcGIS Online?

I understand that Landsat 8 is 30m resolution, but is there any technique that can be used to smooth/enhance the NDVI or Agriculture Landsat layers in an ArcGIS Online (AGOL) web map? I have adjusted ...
2
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2answers
2k views

How to atmospherically correct Landsat 8 data?

What is a simple way to atmospherically correct Landsat 8 data using Erdas 9.3 or ArcGIS 9.3?
10
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3answers
1k views

Handling mountain shadows when classifying Landsat 8

I'm trying to classify some area in northern Mongolia using Landsat 8 satellite images from 2013. Since the recordings were made in winter, the sun is very low at the acquisition time. Therefore there ...
0
votes
1answer
1k views

How to run Layer Stack in Batch Mode with GDAL?

My goal is process fifteen Landsat-8 scenes with three bands. I need to rescale the pixel depth from 16 bit to 8 bit, stack three bands and mosaic all them. This job must be making via open source ...
2
votes
1answer
1k views

How to remove band from stack in ERDAS 2013?

I have a Landsat 8 scene where I have stacked 11 bands. I need to remove one band from the stacked layer. Is there a toolbox in ERDAS 2013 that allows me to take out a band? I am aware that ENVI 5....
1
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1answer
530 views

IR/R could not detect when using landsat 8 in ERDAS 2014 Is there a alternative way around?

I'm using ERDAS 2014 and I upgraded from ERDAS 2013. I am doing a lot of band indices for various kinds of such as clay, ferrous, Mineral composite and so on.. from landsat 8. Using the indices in ...
2
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3answers
2k views

Converting Landsat8 DN to TOA reflectance for use in envi

I am used to working in envi, however my current version does not support Landsat8. I downloaded GRASS for the express purpose of converting Landsat8 DN to TOA reflectance for use/analysis in envi. ...
1
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0answers
353 views

Pansharpening Landsat 8 tiles in Grass 7

I am trying to get some nice looking RGB images for visualization purposes, mainly using as background maps, from the Landsat 8 archive. I was following the tutorial provided by Markus Neteler at ...
3
votes
1answer
290 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 ...
1
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1answer
318 views

Empty raster returned after GRASS i.atcorr with Landsat8 data

I've searched at length on previous forums but no solution seems to work for me. I'm trying to run the i.atcorr module on GRASS (version 6.4.3 on a Macbook Pro, Mavericks OSX) with Landsat8 imagery. ...
1
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1answer
897 views

QUAC atmospheric correction for Landsat-8 (ENVI 5.0)

I try to realize QUAC atmospheric correction for the band 4 and band 5 of Landsat-8 in ENVI5.0. This version doesn’t support Landsat8 (doesn’t have parameters of Landsat-8). At the first step I glued ...