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Questions tagged [google-earth-engine]

Google's cloud computing platform for geospatial data & analysis at earthengine.google.com, which can be programmed using either Python or JavaScript client libraries.

Earth Engine has client libraries in both and .

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Reduction over an image collection Google Earth Engine

I am using CHIRPS data set (daily precipitation) to derive mean, median, min and max precipitation within a certain time frame. Then, I want to extract the values at specific locations included in a point shapefile and save the results in a…
Lollo
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How to create a feature collection with mean values of certain features and the location/shape of a different feature collection?

I have two feature collections one containing point data with measurements and the other polygons marking the different clusters where several measurements were taken close together. In Google earth engine I am trying to create a new (point) feature…
lcasse
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Earth Engine: Mapping over an ee.ImageCollection returns an ee.FeatureCollection

I am trying to remove images with clouds from a Sentinel-2 image collection with the following script: // Remove images with clouds var cloud_removal = function(image){ // save the quality assessment band QA60 as a variable var cloud_mask =…
Bruno Boemke
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Perform Accuracy Assessment for two FeatureCollections

I want to perform an binary Accuracy Assessment (ErrorMatrix) for two FeatureCollections containing lakes as polygons. One collection contains the results of a classification (needed to convert raster to vectors to calculate area size and to remove…
Lares525
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raster does not align with shapefile after processing with rgee

I defined a polygon: library(rgee) ee_Initialize() polygon <- ee$Geometry$Polygon( list( c(91.17, -13.42), c(154.10, -13.42), c(154.10, 21.27), c(91.17, 21.27), c(91.17, -13.42) )) Map$addLayer(polygon) The polygon…
89_Simple
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extract the values for all pixels in a polygon in google earth engine

I defined a polygon var polygon = ee.Geometry.Polygon([114, 0.37, 114, 2.04, 112, 2.04, 112, 0.37]); and a dataset that needs to be processed for the above polygon var dataset = ee.ImageCollection('NASA/NEX-GDDP'); for a selected date var…
89_Simple
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Reclassify all pixel values in all of the images in an image collection - GEE

I am new to GEE so the answer to this question may be simple to most of you. I am looking for a way to reclassify pixel values in all of the images in an image collection. I'm working with the Monthly History data from the Global Surface Water…
Garrett M.
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Is there a way to be sure that the mosiaic you're creating with help of Googles Earth Engine is complete?

As stated in the heading - we're trying to use the data out of the mosaic for a project but the data will only make sense when the mosaic is actually completed. So if the area we choose is too big, the satellite might not get over the spot in the…
Taylor Drift
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Land-use classification using the Random Forest algorithm of the GEE

I am working on a land use classification program using the RS algorithm of the GEE platform. The codes are as the following link. https://code.earthengine.google.com/7e99f1de58c1251bd9bff0ff7af9368b Specific codes: var table =…
zongxu li
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zero crossings: Layer error: Image.visualize: Cannot provide a palette when visualizing more than one band

I was trying to do some edge enhancement on sentinel-2 satellite image, but the problem is that the console keep stating that the layer 'Cannot provide a palette when visualizing more than one band', even though i already chose a band. Here are the…
Noob123
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GEE obtain bands from image collection

I'm currently working on my bachelor's thesis and I am trying to work with Sentinel 5 - P's aerosol data. I am trying to obtain Aerosol Layer Height (L3__AER_LH) data but I do not know the bands, which I need to 'select'. The README file on…
Martí Prat i Esquerdo
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Extract 10'000 images from Google Earth Engine

I want to obtain 10k images of 100x100x[nBands] pixels each from Earth Engine. I made a Region from which I want to select images. I plan on creating 10k random points in the Region and selecting the 100x100 pixels in the surrounding area for each…
Florian Fasmeyer
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How to print reduced pixel value in google earth engine

I try to print the value of precipitation sum of a given pixel (point location) # pixel location loc_point = ee.Geometry.Point([-0.627983, 52.074361]) # get precip precip =…
Juba
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Is there a way to use fusion algorithms like STARFM in Google Earth Engine?

Landsat and MODIS products both have their advantages. Landsat with its high spatial resolution and MODIS with its high temporal resolution. I've read a lot about downloading the files and fuse them locally with algorithms like STARFM in Python for…
hanzlan
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Iterate through an Imagecollection dataset

What I would like to do is iterate through an Imagecollection dataset and process each image.What i would like to do is extract each image compute the NDVI using this: var image2 = Filtered_Free_image.clip(geometry); Map.addLayer(image2,…
Giannis Psixogios
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