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JavaScript client library for calling the Google Earth Engine API.
1,258 questions
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Mann-Kendall pixel masking issue
I'm trying to run a Mann-Kendall analysis on spatial NDVI timeseries for a number of sites. As part of the analyses, I have been using DynamicWorld to mask out undesirable areas (e.g. snow and ice, ...
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Google Earth Engine for beginners, should I start for JS or Python? [closed]
I work with conservation ecology and I believe at least part of the future of the subject is on GIS. I do have previous experience, specially on QGIS but I'm very much looking forward to use Google ...
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11
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Calculate pairwise difference between neighboring pixels
I am trying to process an elevation image in GEE (JavaScript editor) to obtain the slope from the neighbors of a focal pixel to it. I want the slope from one specific pixel (e.g., up) to the focal one,...
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Create monthly mosaics across multiple years in Google Earth Engine
I am working on a project to create monthly mosaics of albedo over glaciers in Iceland which:
Loops through years 1984-2024
For each year, create monthly composites, ideally using .mosaic
Export the ...
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24
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Accessing ERA5 Zarr data in Earth Engine
Just been experimenting with the new loadZarrV2Array function in Google Earth Engine to see if I can get access to ERA5 2m air temperature and other data held in the data buckets. The code is throwing ...
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32
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How do you filter an image collection by a mean NDVI threshold value in Google Earth Engine?
I have written code in Google Earth Engine that does the following:
Creates an image collection
Calculates the NDVI and Bare Soil Index (BSI) for each image in the collection
Enables visualisation (...
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27
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Creating complete image within shapefile that does not get cut off by Landsat tile boundaries
I'm fairly new to GEE/JavaScript/coding.
I'm working in Google Earth Engine with Landsat 4-9 imagery to create a time series of glacier albedo. I am working within a RGI glacier polygon shapefile in ...
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My map function isn't working as expected
Here's my code:
function getSentinel2(){
var cloudSat2 = ee.ImageCollection("COPERNICUS/S2_SR_HARMONIZED") //Get Satelite
.filterBounds(polygonGeoJSON) //Filter to the right ...
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11
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How to automatically filter out low-quality monthly Landsat images during export?
I have this code where I export monthly images (the code in the link contains more spectral bands and indices):
var landsat = ee.ImageCollection('LANDSAT/LC08/C02/T1_L2');
Map.centerObject(table);
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Why do the grid results obtained after using SNIC segmentation only have three values when exported?
I have designated a very small area and used the following code to spatially segment the sentinel image, and exported the segmented grid.Why are there only three values (-32768,0,32768) in the ...
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Recover accidentally deleted Earth Engine default repository
While doing some file tidying up in the Google Earth Engine javascript API I accidentally deleted my default repository. I've looked around for how (or if) it can be recovered, and the only mention I'...
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Perform change detection (detecting gain after first loss) using LandTrendr in Google Earth Engine
I would like to know the NDVI or NBR recovery after the initial loss.
Currently, I can only get the first loss and first gain as mentioned in the tutorial.
How could I add one logic condition?
//######...
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2
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27
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Charting percentiles of image band using Google Earth Engine JavaScript API
I've been working on a project working with a general Kc formula, and I've been stuck on charting this right forever. Below, I have the code I'm using to create an image collection of the 5%, 50%, and ...
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54
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How to Clear the Earth Engine Console?
I'm working on a small research project using the Earth Engine Code Editor. Right now, I have a way to print a chart to the console, but I'd like to be able to clear it for the next one.
If possible, ...
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32
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How can I extract NDVI-based GeoTIFFs for Laikipia from GEE, by year and season, using Landsat with cloud filtering and NDVI classification?
I am working in Google Earth Engine to extract NDVI data for Laikipia County, Kenya, from 2000 to 2024, using Landsat imagery. I need to generate GeoTIFFs for each year, as well as for each dry and ...
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