All Questions
Tagged with google-earth-engine landsat
217
questions
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Overlay Image Date to Landsat Images from a collection
I am trying to extract the date of capture from a range of Landsat images on Google Earth Engine, then overlay that date onto each resepctive image before exporting the image series as a timeline. ...
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43
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Sample raster (Landsat) using points (preferably using Python or maybe GEE Code editor)
I have a point shapefiles that covers an area of Multiple states and multiple Landsat (NDVI) tiles from a span of May-Sept for 2005, 2010, 2015, 2016, and 2021. Let's just focus on 2005 for now. I ...
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28
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Landsat 5 RGB displaying wrong colours GEE
I'm accessing a Landsat 5 image on GEE from the Collection 2 Tier 2 dataset (tier 1 is not available for these images). I'm displaying in B3/2/1 (i.e. R/G/B) but the white ice and snow shows up as ...
- 435
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62
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Download all Landsat tiles for a specific data range onto my computer using Google Earth Engine
I want to download all the available Landsat tiles (all bands included) for a given ROI using GEE. By tiles I mean the original tiles USGS uses to organize the Landsat data. I want each individual ...
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31
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How to understand the Landsat457 cloud removal code recommended by GEE
What does the cloud removal code recommended by GEE mean?
// This example demonstrates the use of the Landsat 4, 5, 7 Collection 2,
// Level 2 QA_PIXEL band (CFMask) to mask unwanted pixels.
function ...
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24
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LST in GEE: Error generating chart: No features contain non-null values of "system:time_start"
The error:
Error generating chart: No features contain non-null values of "system:time_start"
appears when I try to generate the LST graph in GEE for the selected period. I tried to return ...
- 109
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77
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Topographic correction
I am trying to code the topographic correction and I get this error:
"Image (Error) Image.constant: Parameter 'value' is required."
I have seen a similar script for an entire collection, ...
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28
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How to the image date/ metadata used when using the .median filter in GEE?
I am processing LST, NDVI, NDBI, & UHI data in a 1 year period. I used the .median filter function for filtering the dates.
My question is, how do I know what images to use? I've tried the ...
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32
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Batch export individual monthly rasters from a raster stack in Google Earth Engine
I have the following code where I am exporting monthly images (all bands included) for the year 2018:
var collection = ee.ImageCollection("NASA/HLS/HLSL30/v002")
.filterBounds(table);
...
- 1,093
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67
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Landsat NDVI Anomaly Google Earth Engine
I am interested in calculating Monthly NDVI anomaly using Landsat. My objective will calculate long term monthly NDVI with all Landsat collection 2 sensors. In this simpler example I am only using ...
- 35
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43
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Export and download each Sentinel-2 satellite data by date from Google Earth Engine
I would like to download Sentinel-2 satellite data for the year from January 1, 2023 to December 31, 2023 from Google Earth Engine, respectively by date.
I've written and run the script below, and I ...
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37
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How to extract a grid layer from GEE image?
Recently while working with GEE in python I was trying to slice a Landsat image to get its bands and grid for a specific area.
On the first stage I sampled a neighborhood around a point with radius ...
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26
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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('...
- 1,093
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66
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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 ...
- 31
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89
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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: ...
- 45