Questions tagged [landsat]

A series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey.

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R programming and coding [closed]

I have questions about making a loop or function to select all elements of a specific variable. Actually I have a variable with 100 names on that. Some thing like this: Area<- c(“Germany”, “Italy”, ...
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Fill missing values from other rasters in ArcGIS Pro

I am doing land use classification using multiple scenes from the Landsat satellite for 12 months. In each scene, I have removed the cloudy pixels and replaced them with pixels with no data value. Now ...
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Mean MNDWI on Landsat 5, landsat 7 and Landsat 8 Harmonization [closed]

I calculated Mean MNDWI on a harmonized image collection of Landsat 5, Landsat 7 and Landsat 8 as well as on each satellite separately but I don't get the same values of MNDWI timeseries. So, I don't ...
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NDVI in Google Earth Engine

I want to process NDVI data in Google Earth Engine and finally I use a script like below. var dataset = ee.ImageCollection('LANDSAT/LC08/C01/T1_8DAY_NDVI') .filterDate('2017-01-01', '...
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Landsat Collection 2 surface reflectance harmonization

I am using Landsat 5, 7, 8 collection 2 level 2 to extract NDVI time series with GEE. Is it necessary to apply the Landsat ETM+ to OLI Harmonization with the Roy et al. (2016) coefficients to ...
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Get NDBI, NDVI, NDWI from Landsat 1

I am trying to compare the urban growth of a city from the '80s to 2022, so I need to use Landsat 1 imaginery. For Landsat 8 the NDBI index is clear but what about for Landsat 1. Which bands should I ...
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How to calculate NDVI, EVI with Landsat 5 images?

How to calculate NDVI, EVI with Landsat 5 images? I downloaded the Collection 2, Level-2 image of Landsat 5. I calculated NDVI and EVI for Landsat 5 images using QGIS. EVI =2.5 * ((Band 4 – Band 3) / (...
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1 answer
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GCI and NDVI Uncorrelated in Same Region and Time Period

I am attempting to calculate NDVI and GCI values during the 2019 growing season within districts in Mali. Specifically, I want to take the max of NDVI/GCI values for each pixel over the growing season ...
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Error while exporting data form Google Earth Engine

I want to export monthly mode composite of NDVI for 10 years, 2012-2022, using Landsat imageries. My code works fine till preparation of monthly NDVI but when I try to export the 120 scenes to drive I ...
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Not able to find bands in Landsat 8 L2

I downloaded Landsat 8 L2 dataset and when I extract the dataset, I got bands till 7 and 10. rest of the bands i.e 8,9,11 are not there. the other bands have the following prefix: Aerosol, Atran, ...
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Developing masks to a Landsat composition

I'm a beginner at GE and JavaScript code. I want to apply two masks to a Landsat composition that is already done in the code. First I've done the raster upload (that I want to be a mask), which I ...
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LandSat Land Surface Temperature - Python

I'm trying to determine if my code for determining land surface temperature is correct. The imagery contains a fire in the middle of October with snow mixed in so temperatures show be nice and ...
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1 answer
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Error generating chart: The image collection is empty Landsat 5

I am using Landsat 5 to generate my NDVI, but it's giving an Error generating chart: The image collection is empty. However when I change the location of my AOI to the northern hemisphere, for example,...
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Land Surface Temperature - Landsat 8 - Python

I'm trying to determine if my code for determining land surface temperature is correct. The imagery contains a fire in the middle of October with snow mixed in so temperatures show be nice and ...
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Exporting average annual/monthly NDVI using Google Earth Engine

I referred to the code to export NDVI from GEE, but the console always says: Error generating chart: No features contain non-null values of "system:time_start". code link: https://code....
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Landsat 8 LST estimation high values for band 10 DN

I am working on a project and it's about estimating LST based on Landsat 8 OLIS/TIRS C2 L2 (downloaded directly from United States Geological Survey). The calculation of LST is not the problem. I ...
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Stacking Landsat images of different directories using Python

I have different folders containing Landsat 8 bands. I want to stack them into a single raster file. ArcPy can not be downloaded. Is there any other way to do that? I have this snippet for the code ...
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Why this LST code does not give full area coverage?

I am new to GEE. However, I am using the following code for LST measurement. But When I use the code, I see there is Landsat image covering the whole area but the LST layer doesn't get the area ...
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Python bulk downloading issue

Here is my code to download the Landsat data. from landsatxplore.api import API import json username = 'username' password = 'password' api = API(username, password) ...
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1 answer
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Why this LST code for Landsat 7 is not working?

I am trying to calculate LST from landsat 7, Band ST_B6, using the following code https://code.earthengine.google.com/8e6c7e6060b8e658c9985d4f4f05f30f imagen.multiply is not a function;is not a ...
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Mapping Soil Sealing and Water Bodies

I am asked which bands of Landsat 9 (or 8) is best for mapping soil surface sealing and water bodies at higher resolution. The band available in Landsat 9 is as shown:- From above band name; which ...
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Difference in color saturation in two Landsat-8 images

I have an assignment, where I have to do a classification and change detection between to satellite images. Now I have two Landsat-8 images from two different years (2019 and 2020) at captured nearly ...
-1 votes
1 answer
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How to export Trassle cap transformation Index into Google Drive?

I have used the code to calculate Trassle cap transformation Index form of landsat 8 image. I want to export wetness index in google drive but it showing error `"Error: Image....
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1 answer
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Image (Error) User memory limit exceeded

I was trying download spectral bands. Below show my scrip, the first part do a mask for take off land cover i don't wish. After, i do a date cube, for download the spectral band, where each band is a ...
1 vote
1 answer
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L7 issue with land use classification in Earth Engine

I am trying to classify land use in earth engine with L7 imagery, however a chunk of the region of interest is being left out as seen in the image. The code can be found here: //Set map centre Map....
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Removing extreme values from a (calculated) raster in QGIS

I have a Landsat GeoTIFF with a multiplicative scaling factor of 0.01. When I load the tif into QGIS and multiply the raster by 0.01 extreme values are created (see attached picture). Looking at the ...
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Merge Landsat GeoTIFF files failed in QGIS

I am working with Landsat-9 images, I want to merge two GeoTIFF files of same band. These are the images I want to merge. I set the following raster -> miscellaneous->merge. I set assign '0' as ...
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Public AWS URL to Landsat-8 images - error 404

I'm not the only one having trouble downloading Landsat images from aws server using a URL like this: https://s3-us-west-2.amazonaws.com/landsat-pds/L8/017/008/LC80170082015211LGN00/index.html As in ...
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NDVI from rescaled Landsat 8 L2 product is out of range

I need to use Landsat 8/9, level 2 products, to compute NDVI. I know that I need to scale band 4 and 5 before compute the index. Here there are the official scaling factors. So, as example, I apply ...
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Landsat 9 Image Collections are not producing any images from July 7th to the present. Why is this?

I have a code that has been using the most recent Landsat 9 images from the last 48 hours, and since the 7th, none of my code has worked because there are no images to pull from Landsat image ...
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Earth Engine API returns shifted Landsat scenes depending on the coordinates of the region of interest

I'd like to download programmatically a Landsat image cropped to a small region of interest. Google Earth Engine has a copy of the Landsat archives and provides an API to download and interrogate the ...
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Earth Engine: Landsat 8 QA_PIXEL issues with cloud, shadow, and land masking

Using the QA_PIXEL band in Landsat 8 to mask out clouds, cloud shadow, and land often masks out large areas of water. The QA_PIXEL band identifies these water areas as land and cloud shadow, when this ...
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Landsat 8 Collection 2 cloud-free mosaics in Earth Engine

I am trying to get cloud-free mosaics from 6-months periods of Landsat 8 Collection 2 Surface Reflectance. So far I've used geetools. My code consists of multiple modules so I can't paste it all here, ...
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1 vote
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Atmospheric correction on Landsat scene using Python

I need to develop a workflow to analyze Landsat and Sentinel 2 scenes using Python and Xarray library. Generally I do this task using QGIS and Semi Automatic Classification Plugin, I'm using the ...
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1 answer
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Is there any way that can help determine the flow direction of a river in a satellite image (Landsat)?

For example, there is a stream in the following image, but I find it difficult to determine the flow direction of the stream. Should it be from south to north, or the opposite?
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1 answer
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Calculating MODIS EVI feature collection but not landsat

I'm not sure why I am able to calculate the median EVI for MODIS but not for Landsat. I can see the time series of Landsat EVI values in the Inspector panel for a single pixel but when I export I get ...
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1 answer
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0 element in image collection in Google Earth Engine

var roi = /* color: #d63000 */ /* displayProperties: [ { "type": "rectangle" } ] */ ee.Geometry.Polygon( [[[112.01637668750301, 30.256437069990916], [112....
3 votes
1 answer
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Calculating NDVI using QGIS Python Console

I'm going to calculate NDVI using band 4 and band 3 of Landsat 5. The code I wrote: import os, re import processing from osgeo import gdal input_B4 = r'C:\Users\test\...
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True color (RGB) is not created with Landsat5(TM) images

The true color (RGB) is not created with the Landsat5 image. I downloaded the TM video of Landsat5 from the USGS (earth explorer). I have videos from 1985 and 1986. "...
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Can I obtain LST time series from Landsat 7 dataset for 2019-21?

I used the below code I got from a similar question for obtaining the time series of LST using Landsat 7 dataset. I am getting error as: Image (Error) reduce.median: Error in map(ID=...
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1 answer
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Cloud filtering Landsat collection 2 time series by region

I'm working on creating an NDVI time series and I'm trying to filter out clouds over a specific region so I wont get huge gaps in the time series. Is there a way to reduce the extent by cloud percent? ...
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Export Image as CSV table in Google Earth Engine

I am new to Google Earth Engine. I am trying to export NDVI and Band 6 and Band 10 (after cloud masking) as CSV table with columns for dates and Long and Lat (x and y). Am completely lost when it ...
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How to Export/Save Array/List Objects in Google Earth Engine to CSV Files in Google Drive?

I’d like to go through the Landsat archive for a particular row and path and calculate the number of pixels identified as water, land, snow, and cloud (using the QA_PIXEL band) for each image. My goal ...
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Landsat 8 Cloud Masking using Pixel QA in ArcMap

I have a scene that has clouds and shadows which I would like to mask before I continue with my Classification. I am using LC08_L1TP_180073_20141224_20170416_01_T1 which has a pixel QA file. I ...
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Load raster from Requester-Pays S3 bucket into QGIS

I have successfully requested Landsat data from the USGS S3 bucket by following the provided tutorial. Now I want to pull a raster directly into QGIS via the Data Source Manager. I have set my ...
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Scanline error fixer unable to fix the problems

I am using ArcGIS version 10.7 and my objective is to do LU/LCC and NDVI; however, Landsat 7 scanline error fixer toolbox does not fix the problem Landsat 7 image. What shall I do?
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Antarctic data in Earth Engline Landsat 8/9 collections

I am trying to use Landsat collection 8, to look at a feature in Antarctica. Specifically this collection https://developers.google.com/earth-engine/datasets/catalog/LANDSAT_LC08_C02_T1_L2 although I ...
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Imagery from two Landsat 8 paths are visually different

I downloaded the Landsat8 L2 imagery for my study area from EarthExplorer. Satellite footprints from two paths cover my study area (image below). But there is a significant visual difference in ...
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Landsat provisional ST ARD data

Can Landsat provisional ST data from the Tier 1 ARD collection can be used in GEE?
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Using images from different Landsat missions and Sentinel-2 for machine learning

I am doing some image segmentation using random forests on satellite imagery. The events I am trying to detect are somewhat rare so my training sets are very limited if I want to use Sentinel-2 ...

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