Questions tagged [landsat]

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

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Region of Interest selection error in Semi-Automatic Classification Plugin (Error: unable to calculate)

Yesterday I upgraded the Semi-Automatic Classification Plugin. Immediately after doing this, the automatic ROI selection is giving me that error as shown in the attached image. I have tried to ...
Aim Banda's user avatar
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How to Build and Export a MSAVI raster file from Google Earth Engine [closed]

I am working on a species distribution model for a lizard species in the American Southwest, from northern Utah to middle of Mexico, middle California east to middle New Mexico. One of the variables I ...
CSG's user avatar
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Raster values out of range when exporting a spectral index

My goal is to export monthly bands and indices from Landsat 9. Here is my approach for the bands (I know it's not the most elegant way but I think it's working): var landsat = ee.ImageCollection('...
Nikos's user avatar
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Rasterio ValueError

I am trying to clip a bunch of Landsat images with vector mask, but the Rasterio keeps hitting me with following error: ValueError: min() arg is an empty sequence I have not been able to resolve it....
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How do I project a Landsat image correctly using Build Virtual Raster?

I am trying to make one complete image using B4 images from USGS and another using B3 images to then calculate NDVI. The issue I'm having is a single image not lining up in the same projection (see ...
Aimee Calkin's user avatar
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Google Earth Engine Landsat NDVI

I'm trying to map deforestation using Landsat NDVI time-series. But unfortunately I can't find the data from 2022 - 2023, on the other side data before that year is available. Can someone explain me ...
MapperIndo's user avatar
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Dictionary.get: Dictionary does not contain key: bucketMeans Error when trying to apply Otsu threshold

I am trying to apply Otsu's threshold to remove water from my NDVI image. But when running the code I get the error: ImageCollection (Error) Error in map(ID=1_2_LE07_020039_20220510): Dictionary.get: ...
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Correctly merge Landsat images in a median mosaic using different tiles

I have several Landsat 8 and 9 images, from two different tiles that I want to merge together in a median mosaic. The tiles are tiles that overlap, with two images for each tile. What I'm doing to ...
rrwork___'s user avatar
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Applying temporal water masks to temporal Landsat composites

My goal is to create monthly water masks using an NDWI index with Landsat. Additionally, the code should allow a user to select their own temporal window, but in this case the goal is monthly. In ...
pbalteza's user avatar
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Predict live fuel moisture based on NDVI in GEE

I am using the code below to predict live fuel moisture for a specific point, but when I get to getting the value, it says no band 5, but I used band 5 to calculate NDVI, which indicates it is there, ...
Tshepho Manyothwane's user avatar
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Directly working with data from different platform without having to download it in Google Earth Engine

Is it possible to import and work with data that is not hosted in Google Earth Engine without having to download it? I am working with a publicly available Global Man-made Impervious Surface (GMIS) ...
Nasa_Milla's user avatar
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New Zealand satellite imagery Google Earth Engine

I want to create a satellite image for all of New Zealand using 2020 Landsat 8 satellite imagery to then calculate NDVI to export into QGIS. I am wanting to compare to 1990 satellite imagery so want ...
Aimee Calkin's user avatar
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Retrieving Spectral Values at Specific Wavelengths in Landsat Imagery. Is it possible?

Imagine you are working with Landsat imagery, specifically Landsat 5, and you aim to extract spectral information at 531nm. In this scenario, you would typically choose band 2, as it operates within ...
Eladio's user avatar
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Turning stretched raster image to RGB 3 bands

I'm using a 2012 landsat image for a time series image analysis. The original image had 3 bands colors composite, after image processing, because the original image had scanline errors, the result ...
amina k's user avatar
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Extract images of sand dunes migration from 1st January 2021 to 20th December 2023 through Landsat9

I'm seeking to extract images depicting the migration of sand dunes between January 1, 2021, and December 20, 2023, utilizing Landsat 9 data. While attempting to retrieve this information using the ...
AKD's user avatar
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Is there a publicly available higher resolution equivalent to Landsat 8/9 TIRS?

I have a strong feeling the answer to this question is no. That said, I'd love to be wrong. I'm looking to estimate land surface temperature at a higher resolution than the 100m bands (10 and 11) on ...
msmith81886's user avatar
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Excluding 'No Data' Pixels When Counting number of pixels in an AOI with ERDAS IMAGINE

I'm working with Landsat imagery in ERDAS IMAGINE 2014 and have encountered an issue with 'no data' pixels within my Area of Interest (AOI). The AOI includes unwanted 'no data' pixels that are ...
DMAGAS SENAVIRATHNA's user avatar
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Landsat imagery showing up as white in GEE

I am trying to learn GEE's Python API through Google Colab. Right now I am trying to map Landsat using folium and geehydro. I was able to implement NDVI just fine, and it displayed exactly as I ...
Noah Jacobs's user avatar
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How to mask clouds and shadows for Landsat 5 Collection 2 Level 2 data in Google Earth Engine

I want to create a cloud-free composite for Landsat 5 data and I want the shadows to be masked as well. However, the code only includes the clouds. I am extremely new to this and cannot find any ...
pb8282's user avatar
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EVI differences between Landsat 5 and 8 (utilizing Collection 2 data within Google Earth Engine)

I am calculating the EVI changes from 1984 to 2023 in the winter months within the state of Maine. I have written up a script to understand the changes within each month across the 40-year time scale ...
Sarah's user avatar
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What do the values mean in surface reflectance/surface temperature bands Landsat 8/9 OLI/TIRS C2 Level 2?

I am trying to make a heat risk index using Landsat8 but I am having a bit of trouble with understanding the basics or operating remotely sensed imagery. I downloaded the band 10 of Landsat 8 because ...
noobshacks76's user avatar
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Unable to map land surface temperature in QGIS from downloaded tiff

I am trying to download a land surface temperature raster layer from USGS Earth Explorer. I have chosen the following data to map for the Berkeley, CA. From Earth Explorer, from Landsat 4-9 C2 U.S. ...
LostinSpatialAnalysis's user avatar
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Exporting monthly NDWI images

I am trying to export monthly NDWI images for about 15 years from LANDSAT5 images. This is my code. for exporting 180 monthly NDWI images, I have some problems and the code does not work well. How can ...
Samaneh's user avatar
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Landsat 8 - eleven bands and corresponding files

Landsat 8 zipped file downloaded via EarthExplorer consists of several files. Which of the files correspond to the band 8, 9, 11? LC09_L2SP_x_y_z_02_T1_ANG.txt LC09_L2SP_x_y_z_02_T1_MTL.json ...
Vladimir Z.'s user avatar
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Timelapse in GEE

This code is working and the video is active but only images are there. I couldn't add the date (year) to the images. How can this step be accomplished? // Define your collection var collection = (ee....
user233587's user avatar
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Calculating LST from Landsat 8 in Google Earth Engine display a blank image

Why is it that when the following GEE code is used to calculate the lst of landsat8, the data statistics are correct, between 29°C and 55°C, but the output image is blank and the file is only 14.9MB? ...
Thomas Taylor's user avatar
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Why does the spatial coverage of Landsat 5 deteriorate over Alaska further back in time?

I am working in Google Earth Engine to retrieve Landsat images over Alaska. As I am doing so for each year, I realised that the coverage of Landsat 5 deteriorates the further back in time you go. ...
Thomas's user avatar
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Convert Landsat 9 Surface Reflectance product DN to surface reflectance values

I downloaded the Landsat 9 L2 imagery from Earth Explorer for the purpose of calculating NDVI. However, when opened in ArcMap 10, the pixel values are in the range of 7000 to 45000. I understand that ...
Tsaku Graham's user avatar
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Plotting Landsat8 RGB image in R

I want to plot a RGB image of Landsat8 in R. Therefore I use GGE (rgee) and save one image locally. Finally I want to plot the image as a RGB image. But no mather what band combinations I use, the ...
talocodat's user avatar
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268 views

Harmonized Sentinel-2 Landsat

Recently, I recognized a new dataset in Google Earth Engine called the HLSL30: HLS-2 Landsat Operational Land Imager Surface Reflectance and TOA Brightness Daily Global 30m. I am wondering about the ...
Henri's user avatar
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Landsat 8 Composite Image - Which Band Composition should I use?

I've downloaded a Landsat 8 images (Band 1-7) and used ArcGIS to make a Composite Image. Then I set the color bands: Red - 4 Green - 3 Blue - 2 This is what it looks like: This is a glacier in ...
Moseleyi's user avatar
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Semi-Automatic Classification Plugin Error on install required python library remotior_sensus

I have been trying to install the semi - automatic classification plugin but it results with the following error: semi automatic classification plugin : Error, please install the Python required ...
Jagan's user avatar
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Blank pre-1998 Landsat NDVI time series on GEE

I tried to generate Landsat NDVI time series for Fagge, Nigeria from 1993 to 2022 on Google Earth Engine but the output chart started from 1998 despite several items. Can you assist with the code? ...
Emmanuel Aweda's user avatar
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1 answer
157 views

Transform ee.ImageCollection to xr.Dataset in Python (via Colab)

I am trying to transform an ee.ImageCollection (Landsat) for a Region of Interest into an xr.Dataset so I can further process the data and ultimately export as a .csv. I have tried using the library ...
richard.turner's user avatar
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1 answer
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Multiple Points showing up for for a given date after applying a Savitzky–Golay filter to smooth my data

I've been trying to draw NIR and NDVI data from LANDSAT and SENTINEL-1 data respectively, which can often be a little noisy. As such, I've been trying to apply the Savitzky–Golay filter available at: ...
user231178's user avatar
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1 answer
43 views

Cloud masking removes buildings and roads [closed]

I'm new to GEE and especially the cloud masking algorithms. I am trying to get a cloudless composite image of an area using ee.Algorithms.Landsat.simpleCloudScore(image) but I'm aware that this method ...
noor's user avatar
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286 views

Calculating LST from Landsat 5 in Google Earth Engine

I'm trying to write a code for Land Surface Temperature (LST) from Landsat 5 images in Google Earth Engine. I'm using the code of this question as a guide and I succeeded but I'm not sure to be right ...
user222721's user avatar
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Projection issues Landsat 5 in QGIS

I'm using an image of Landsat 5 in QGIS and even though I fix the projection to WGS84 EPS: 4326 using Raster tool Warp. The projection is out of focus. I normally work with Landsat 8 and never had ...
Ray's user avatar
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121 views

Remove terrain shadow in Landsat image in GEE

I'm trying to extract water located in mountainous areas using Landsat satellite images in GEE. But the method I used will misclassify terrain shadow as water. I try to use DEM to remove terrain ...
YX Zhao's user avatar
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67 views

Wrong scale when exporting Google Earth Engine image as NumPy array

Relatively new to EE. I am trying to export a Google Earth image to a numpy array to run further processing. I have managed to convert the image to an array and have plotted it, but my plotted figure ...
Neo96's user avatar
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I'm stuck trying to export multiple Landsat (5 and 7) images from Google Earth Engine at once

I loaded multiple images from Landsat 5 and Landsat 7 onto my Google Earth engine, from 1988 until 2022 for my region of interest. I'm trying to export these images individually to Google Drive as ...
Benja's user avatar
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Blank classification output in Google Earth Engine

I tried to classify the Landsat images from 2013 to 2022 using the random forest classifier. I have used the below code which has been modified from the one available here. The original code was for ...
Pratibha 's user avatar
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Landsat 8 geometry of image

I'm trying to find actual geometry of the Landsat 8 image. I retrieve Landsat data from ONDA service using EODAG. Onda provides Landsat 8 images in TIF files in epsg:4326. And it looks so: Also, in ...
Nikita's user avatar
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Error when trying to access NASA HLS dataset requiring netrc authentication using R and gdalcubes

I am using gdalcubes to process Sentinel 2 data (https://github.com/appelmar/gdalcubes). The code I use works perfectly with S 2 data on AWS. But when trying to use the Harmonized Landsat-Sentinel ...
GRuC's user avatar
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Radiometric standardization for Landsat5 and Landsat8

I'm currently encountering an issue with classifying LULC. The first image I have is a false color composite taken in 2020 using Landsat 8. However, the second image, captured in 2010 using Landsat 5, ...
Jubier 's user avatar
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108 views

Landsat 8/9 level-2 pansharpening

From the USGS website states "Landsat 8 OLI Band 8 (panchromatic band) is not processed to Top-of Atmosphere or Surface Reflectance." Obviously same is true for Landsat 9. I.e., it's not ...
user3496060's user avatar
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What is the process for calculating the percent canopy of these 2 layers

I am attempting to create a table that shows the percent of canopy per census district in arcgis pro. The data is in two different types. The first is a census tract shape file and the other is high ...
chrispy's user avatar
1 vote
1 answer
184 views

Joining a Smoothed Landsat and Sentinel-1 Time Series & Exporting Yearly

I am working on a script that needs to do the following; 1. smooth a Landsat time series 2a. apply a filter to remove noise from sentinel-1 using refined Lee 2b. smooth a sentinel-1 time series 3. ...
pbalteza's user avatar
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145 views

Image (Error) Image.reduceResolution: The input to reduceResolution does not have a valid default projection. Use setDefaultProjection() first

I would like to aggregate the 30m images to 990m on average through reduceResolution, but he shows me to add the default coordinate system, but I have already added it and this still happens. Below is ...
kunsheng liu's user avatar
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Some of my LULCs do not show up in classification

I am trying to do LULC classification with seven classes using Landsat 8. when I finalize the classification, some classes do not show up in the report. Here is the gee link https://code.earthengine....
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