Questions tagged [google-earth-engine]

Google's cloud computing platform for geospatial data & analysis at earthengine.google.com.

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11 views

Merge two training data to perform Supervised Classification in the Gooogle Earth Engine

I have problem with performing cropland classification for large areas. I have training data based on ESRIshapefile which represents crop type. Then next step in order to not confuse other landcover ...
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1answer
12 views

GEE Editor - clear the task list

Anybody knows how do I clear the tasks list history in Google Earth Engine Editor? I found some solutions on how to delete tasks with client, but how do I clear the list of tasks in the editor? I mean ...
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Earth Engine coordinates in a map

I am beginner and I'm having troubles to do what I want in Earth Engine. What I want: put the coordinates under the map (under the layer). Like this: I already made the layer, but I don't know how to ...
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8 views

Getting time series of several spectral indices for each feature in a feature collection [closed]

I am trying to get Landsat (5, 7, and 8) time series of different spectral indices for each feature of a feature collection with a total number of 72 polygons. To do that, I have created an image ...
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1answer
16 views

GEE: subtract not a function

I tried to do calculations for 2 dataset of EVI on different year. I got an error message evi2020.subtract is not a function. The code is below var countries = Indonesia var Nama_Provinsi = ['...
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1answer
17 views

Reduce Image Collection to Sum when Image do not always overlap in Google Earth Engine or rgee?

I am trying to generate a single image that is the sum of 16 images. Some of the pixels in the 16 individual images do not overlap with each other. I have tried ColG2 <- ee$ImageCollection(list(...
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1answer
35 views

Calculating a “flag” based on two images and add it as a new band in Google Earth Engine

I have two images, high1 and low1. Pixels in high1 represent high areas. Pixels in low1 represent low areas. I would like to create a new image that has a band with a flag for low and high areas. I ...
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14 views

GEE :Cloud/Cloud Shadow Masking for Landsat TOA Data

Due to data limitations, I need to use TOA data to extract cloud shadows instead of SR data. Is there any good way? In addition, why is the amount of SR data less than that of TOA? and this is the ...
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1answer
19 views

How to filter out a geometry from another geometry in Google Earth Engine?

I have a shapefile out of which I need to filter out another shapefile. The .filterBounds() function filters to the second shapefile, which is actually what I need to "delete". How do I do ...
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15 views

Google ai-platform model definition for earthengine usage

I want to host a DNN-model on the Google AI-platform and use this model in the Google Earth for prediction. However, I can not seem to configure the input-output definition properly. There is an ...
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Quarterly Z-Score of raster dataset [closed]

I want to calculate quarterly z-score of a temperature dataset (which is kn in .tif file) and want the result also in raster format (.tif). I tried doing it with the SPI code in GEE but wasn't ...
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1answer
19 views

Sentinel 1 imagery in GEE

Do the Sentinel 1 Ground Range Detected imagery available in GEE as ee.ImageCollection("COPERNICUS/S1_GRD") require no correction at all and are ready to use? The 5 pre processing steps ...
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19 views

How can I visualise my object based classification outputs?

I have ran an Object based RF on google earth engine, I managed to get the accuracies ranging between 63 and 68% for my wetland. The problem now is that my classes cannot be visualized, even when I ...
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12 views

How to combine two or more classifier in supervised classification in Google Earth Engine

For high accuracy of supervised classification, we always use two or several years data to training classifier as following: var classifier = ee. Classifier.smileRandomForest(200).train({ features:...
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1answer
32 views

Renaming bands using Google Earth Engine JavaScript API

I would like to rename the band "B4_stdDev" to "Red_stdDev", and the band "B10_stdDev" to "Temperature_stdDev". Example code: var b4_stdDev = ee.Image().rename('...
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1answer
40 views

Getting forest area (km2) of a region after the classification by RF considering the >10% tree cover and 0.5Ha?

I am trying to make a yearly image collection using Landsat images, then trying to make a classification using Random forest for the image of the years 1990, 1995, 2000, 2005, 2010, 2015 and 2020. I ...
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1answer
32 views

Exporting an ImageCollection to a CSV in Google Earth Engine

I am pretty new to using the code editor. I am trying to export ten-day NDVI composites (images from Sentinel-2) to a table (as a CSV file). I think my problem lies with not knowing how to convert my ...
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0answers
13 views

GEE ui.panel error

I want to creata app to calculate "RMSE" index by table , but I can not select the variance in table here is my code link: https://code.earthengine.google.com/?scriptPath=users%...
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0answers
23 views

Median vs mean in GEE

I applied the cloud masking on Sentinel 2 imagery in GEE. The original image collection without masking clouds is this: First I tried the script exactly as written at the bottom of this page Sentinel-...
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1answer
23 views

Drawing the slope of linear regression in my chart

I can't converse fit to a list. It said the fit.reduceColums is not a function, and I can't even use the addBands to the fit or collection. I'm new to this and only want to add a slope line to the ...
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1answer
21 views

GCOM-C / SGLI L3 Chlorophyll-a concentration (V2) satellite data

I'm doing research on chlorophyll using GCOM-C / SGLI L3 Chlorophyll-a concentration (V2) satellite data. And I want to make two UI designs. First design I want to use Select to select the month that ...
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1answer
23 views

Mapping over a reduceRegions command in Earth Engine

I have a feature collection of about 80,000 tiles, and I am trying to calculate the annual maximum drought severity index score for each tile using TerraClimate data. TerraClimate is an image ...
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1answer
23 views

Function to find annual maximum outcome for twelve years of monthly image bands in Earth Engine

I have a feature collection of about 80,000 tiles, and I am trying to calculate the annual maximum drought severity index score for each tile using TerraClimate data. TerraClimate is an image ...
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0answers
37 views

Using Vegetation Condition Index Function in Google Earth Engine JavaScript API

I created a code in Google Earth Engine to calculate monthly VCI. The official equation for VCI is the following: VCI = 100*(NDVI - NDVImin)/(NDVImax - NDVImin) My problem is that I don't know how to ...
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8 views

Export file _Google Earth Engine_Null parameter passed to FileFilter get user data function

When I export Vector Shapefile or Raster file from GEE and try to open it on another software (ERDAS/QGIS) I am given the following error Null parameter passed to FileFilter get user data function. ...
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0answers
15 views

Adding a time/datestamp when creating a video thumbnail URL in Google Earth Engine?

How can I add a text label showing the date of capture of each image in the animation? var s2 = ee.ImageCollection("COPERNICUS/S2_SR") .filterDate('2020-03-01', '2021-03-20') ....
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0answers
16 views

Cannot export array bands in Google Earth Engine

I'm new to Google Earth Engine and Google AI Platform. A model was previously trained and published to AI platform and be imported to Earth Engine for image classification. The trained model ...
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0answers
22 views

How does Earth Engine scale different resolution bands when it exports an image?

I would like to know how Earth Engine changes a band scale, what I mean by that is that when I export something I have the option to choose a scale in which I am going export my image, so if I export ...
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0answers
30 views

Error when making a composite of four false color NDVIs

everything needed is here except importing Landsat 8 Surface Reflectance Tier 1. I keep getting an error when I'm making a composite of 4 different false color NDVIs and I'm not sure what it means. I ...
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0answers
28 views

Google Earth Engine API, convert Javascript to Python

I have the below code in Javascript using Google Earth Engine Code Editor and it generates a chart and I want this in Python if someone help to convert it. var roi = ee.Geometry.Polygon([66.169021,33....
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1answer
28 views

Understanding Google Earth Engine GOES-16 image string

I am trying to use the NOAA/GOES/16/MCMIPC for weather analysis in Google Earth Engine (https://developers.google.com/earth-engine/datasets/catalog/NOAA_GOES_16_MCMIPC#description) but I cannot find ...
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1answer
28 views

What does the “scale” setting when plotting a NDVI or EVI time series?

I adapted the script from the guide for ui.Chart.image.series to my region of interest and time period: // Import the example feature collection and subset the forest feature. var bm = ee....
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1answer
18 views

Convert Image Band Values from Array into Number

I am trying to convert the pixel values that appeared to be an array (see the snapshot below) into numeric. In its current state, every time I tried implementing reduction, I got an error: Input to ...
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1answer
23 views

Band value selection in Google Earth Engine

I am working on Sentinel-5p NO2 data in Google Earth Engine. The band value of 'NO2_column_number_density' starts from negative numbers i.e.(Low : -1.34484e-05) but I need low value to be start from 0....
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1answer
25 views

How to fix white tile issue when exporting Sentinel-2 Satellite images as video to drive

I'm trying to retrieve Sentinel-2 satellite images from Google Earth Engine using Python, and export them as a video to google drive. But the problem I'm facing is that regardless of the export ...
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0answers
9 views

How to calculate mean of one band of an image in rgee (R package for interacting with GEE) without exceeding memory limits?

I am calculating the means of an image that I've previously done calculations on but I am exceeding EE memory limits: "Error in py_call_impl(callable, dots$args, dots$keywords) : EEException: ...
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1answer
15 views

Reducing image to vectors in rgee

I am using the package rgee in R to process satellite data via GEE. I have a Feature Collection: Counties<-ee$FeatureCollection('users/stephherbstritt/Counties') And an image: corn16<-ee$Image('...
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0answers
16 views

Change in Python earthengine API? filePerBand being ignored by makeDownloadUrl?

This code used to work on RGB data (MODIS, Sentinel2, etc) and would give me a single TIFF file: image = clipped_data.visualize(['sur_refl_b02', 'sur_refl_b02', 'sur_refl_b01'], gain=0.03, gamma=1) ...
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0answers
19 views

An issue with the ee.clip of Google Earth Engine Python API

I'm new to Google Earth Engine analysis so I can't solve a simple task with the python API. What I want to do is to clip an image with a specified boundary that corresponds to a reference image then ...
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0answers
11 views

Computation Time Out in Complex Multi-Band Normalization of Sentinel 2 Image Composite

I am trying to implement Pseudo-Invariant Feature Normalization for Sentinel 2 image in 2015 based on the median composite acquired in 2019 (script can be found here). I once ran the script without an ...
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1answer
15 views

Unable to add new points to the existent geometry - [Download function is returning the original empty geometry]

Everything was going well with the app, except for this part, and after hours and hours of investigations, I couldn't find the reason for this apparently simple problem. Why the new points are not ...
1
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1answer
21 views

Applying equivalent of image.expression function to imageCollection using Google Earth Engine

I'm just starting to work with Google Earth Engine and I'm trying to calculate a simple index based on an expression. I found this image.expression function, but can't figure out what is the ...
1
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1answer
37 views

Converting image to shapefile using Google Earth Engine

I have performed a supervisioned classification to identify lakes in a study region. How can I transform a classification that are in Image to ShapeFile? The code that I wrote: var image = ee....
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1answer
30 views

Reclassifying and vectorizing specifc classes in Google Earth Engine

My raster file has 29 classes and I applied 'Reclassify by table' in QGIS 3.16 to assign 1 to classes 15 and 24 only and all other classes were classified as 0. I applied the following script to ...
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0answers
23 views

Subtract one image from another with Google Earth Engine and getting too high values

I'm trying to apply Change Detection with Google Earth Engine by subtract one image from another and getting too high values in the new image although there is low values in both images ...
1
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1answer
35 views

ERA5 select only the daily images with percipitation bigger than a value per month in Google Earth Engine

I use the ERA5 daily image collection where I want to select only the daily images with precipitation bigger than a value per month. I use the below part of code: //Convert the precipitation from m to ...
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1answer
32 views

Error importing table data (shapefile) GEE [closed]

I was working yesterday on clipping image data by a shapefile I uploaded. Today, however , the importing function has ceased to function. If I try to directly use the shapefile data. var studyarea = ...
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0answers
27 views

Process large ROI in GEE

I am calculating the VCI for Europe, but the ROI is too large for a single run in GEE. How can I divide it and process it in chunks so that when downloaded they fit into a single image/composite? var ...
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0answers
12 views

GEE clip to the borders of European Union + UK + countries inbetween

Is there any easy way to crop the results to the European Union (+UK +countries inbetween) borders? For now I have ended with GAUL database, but it doesn't seem to be accurate at all - the borders do ...
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0answers
22 views

Add bands from one dataset to another in Google Earth Engine

I want to add bands from one data set to another. I have processed two data sets (filterMOD09 and MODIS13). The resolution and time of their images are in one-to-one correspondence. What should I do? ...

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