Questions tagged [google-earth-engine]

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

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19 views

Finding image overlap in Landsat images - Google Earth Engine

I am trying to construct a time series of NDVI derived from Landsat 5, 7 and 8 using the Google Earth Engine's Python API. To ensure the validity of this TS, I am harmonising the TM/ETM+ imagery to ...
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1answer
27 views

Creating multi-ring buffers (donuts) on a feature collection GEE

I have a large feature collection that I am creating a multi-ring buffer on using GEE. My problem is that the .difference algorithm only works on a feature and not a feature collection. I tried to ...
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17 views

How to change or delete a user name?

I was following along reading some instructions. I entered an incorrect username in my EE code editor. How do I change the user name to my name?
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22 views

Calculating the mean NDVI value between top 20% to 30% lowest NDVI in the geomerty for all imagecollection

The purpose is to calculate the representative NDVI value in the geometry for all imagecollection. The representative NDVI in one image should satisfy the requirements that To ascend the NDVI in one ...
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1answer
28 views

Temporally reducing image bands using Google Earth Engine

I am trying to temporally reduce an image from 365 bands (daily) to 12 bands (monthly). Context: I imported an image collection with Soil Moisture (SM) that had 8 values per day (every three hours). I ...
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1answer
32 views

Exporting time series data of multipoints in Google Earth Engine

I have created three points of land surface temperature. I want to export the time series result in three different variable names. // Import country boundaries feature collection. var dataset = ee....
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30 views

“User memory limit exceeded” during Random Forest classification in GEE

I succeeded in an initial attempt at using Random Forest classification on my input image (an exported mosaic covering ~ 2,797 km2). I used 30 trees, classified based on 4 bands, and passed a training ...
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18 views

Export multipoint timeseries in Google Earth Engine [closed]

// Import country boundaries feature collection. var dataset = ee.FeatureCollection('USDOS/LSIB_SIMPLE/2017'); // multiple points var features = [ ee.Feature(ee.Geometry.Point(14.5, -15)), ee....
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17 views

Printing the values on the trendline in the time series chart to the console at GEE

How can I print the values above the trendline in the time series chart to the console? For example, I want to print the first and last number on the trendline to the console. Code Link: https://code....
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1answer
18 views

Calculating zonal statistics for each polygon in shapefile using GEE

I have shapefile of counties and want to calculate mean NDVI for each. I know reducing connected components and ee.reducer.mean can be helpful in GEE but it wants it as CSV for further analysis in R ...
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1answer
29 views

“image” is not defined in this scope

I am new to coding and need some help debugging...I am trying to classify a region in Peru using Sentinel 2. The error I am receiving is "'image' is not defined in this scope." I believe my ...
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1answer
33 views

Regression Analysis

How can I perform a regression analysis between image reflection and field data in Google Earth Engine platform?
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1answer
45 views

How to print properties of a clicked feature to a panel in Earth Engine Apps

I have an Earth Engine App where I display a ee.FeatureCollection. I want to be able to click on a feature and have its properties printed to a ui.Panel widget. How can I do this?
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12 views

Reduce Image Collection by Land Cover Classes in Earth Engine

I am trying to summarize the MCD64A1 monthly burned area dataset within different boundaries across the entire image collection. My code can be viewed in the link below... https://code.earthengine....
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21 views

Most efficient way of having a team work on the same project based in Google Earth Engine?

I have a team that want to work with and edit the same group of scripts in GEE. What's the best way of working collaboratively on a project? I know you can share links to scripts, but is there a way ...
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24 views

Assessing SNIC segmentation accuracy in Google Earth Engine and improve the algorithm [closed]

I have read different publications where segmentation parameters were optimized by using intersection functions on a selection of test-fields(-polygons) to assess segmentation accuracy. Anyone willing ...
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0answers
20 views

Parameter 'input' is required by using GEE

I am new to using google earth engine. Exploring forums I found a script that is very useful to me, but when I run it I get the following error: Error: Error in map(ID=...
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11 views

GEE create chart for the area of classified image

In Google Earth Engine I have classified a mosaic image using Random Forest, and using reducer the area of each class classified was determined by the code below. var area_classified = ee.Image....
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1answer
20 views

Merging the bands of a single image in GEE python API

I currently have a single image with 3 bands with different turbidity data, all from the same region. The pixel values of the 3 bands do not overlap with each other. I would like to merge these 3 ...
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20 views

Making chart of FIRMS data in Google Earth Engine

I'm trying to analyze crops burned areas in GEE. I want to use FIRMS data to make a chart of "T21" and "confidence" bands to see how these variables change in a specific period (a ...
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13 views

GEE index image segmentation and classification

I have a code for performing an index calculation on chosen images and in chosen AOI. The next step I want to do is segment it by pixel value and classify them into 3 groups. I mean a range of pixel ...
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1answer
42 views

Selecting data for a region from Google Earth Engine

I am using Python to work with Google Earth Engine. I would like to extract some data for Paris. I got the shapefile of Paris and I extracted its boundary as shown below: import ee ee.Initialize() ...
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8 views

Solving “Invalid JSON” error on Google Earth Engine [closed]

I have an error Image (Error) Invalid JSON: in line 233 of this code shared here. How can I to solve the error? https://code.earthengine.google.com/a24d237d17e1ee3ef478bb364165ac45
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19 views

JavaScript selection problem [closed]

In Google Earth Engine, when I select apart of code it seems the cursor isn't at the right position and it will select another part. How can I fix this?
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1answer
31 views

Realtime imagery from Google Earth Engine

Can we use Google Earth Engine to get realtime (not later than a week is also fine) satellite images?
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15 views

Export Image in .CSV on Google Earth Engine

This is what I'm dealing with: I have three filtered image collections concatenated in one (Sentinel-1, Sentinel-2 and SRTM), and I would like to export this in CSV for external analysis. The SRTM ...
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29 views

Error when downloading a reprojected image from 30m EPSG: 4326 to 250m SR-ORG:6974 at global scale in Google Earth Engine

I am trying to export an image (global scale) and I get the following error: Error: Reprojection output too large (117761x1982 pixels) The aim of the code is to download an image showing the % of ...
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0answers
14 views

Maps not displaying on Google Earth Engine [closed]

I have a stack of images that I am trying to visualize on earth engine using a for loop. However I see no image. It is strange that if I define a numeric value in the for loop condition then it works. ...
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13 views

Statistics of Image Neighborhoods in Google Earth Engine

Compute standard deviation (SD) as the texture of the NDVI. var texture = naipNDVI.reduceNeighborhood({ reducer: ee.Reducer.stdDev(), kernel: ee.Kernel.circle(7), }); This kind of sliding window ...
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1answer
37 views

Display and label a stack of Sentinel 1 images with the date [closed]

I have a stack of Sentinel 1 images and I want to display all of them one by one and want the label to be the date of corresponding image. I am trying a for loop for that but I am unable to visualize ...
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23 views

Error with filterMetadata of FeatureCollection in Google Earth Engine Python API

I tried to filter a FeatureCollection based on a property i.e. where "Condition" == "Suitable", and count the number of features returned. This is the code I tried. ...
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1answer
25 views

Convert a 2D list of numbers to a ImageCollection with constant values in Google Earth Engine

I have climate indices values as lists and I tried to make the lists into an imageCollection. However, when I tried to use map function, var climate_indices = ee.ImageCollection.fromImages( years....
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0answers
17 views

Anybody know how to add an arrow style to a EE LineString?

I am trying to add an arrow style to a LineString in Earth Engine, pointing in the direction that the LineString coordinates were created. The only style options I see are solid, dotted, dashed. Does ...
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1answer
38 views

Calculating NDVI vegetation area in GEE generates error

I'm trying to calculate & extract the vegetation areas country wide (TZA) using Sentinel-2 imagery, and getting an error when trying to print that area. I'm listing the code below. var region =...
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23 views

Testing quality of training data in Google Earth Engine

I need to manually define landcover training data in order to train a classifier for landcover change detection. My question is, if there is a way to test the correctness of the manual landcover ...
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0answers
29 views

Why are my LANDSAT-8 images from Google EE not 30 m resolution? [closed]

Below you will see some simple enough code for which I am using to try and get a simple clipped raster of a study area. It works, however the image quality is awful. There's no way it can be 30 m. I'...
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0answers
14 views

Ingesting Project Assets With Service Account Via Manifest (NodeJs)

I'm using a service account to connect to Earth Engine API and attempting to ingest some assets from Google cloud Storage using a manifest: uploadManifest: any = { id: `project/martynsproject/...
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85 views

Downloading satellite images in GeoTIFF format

I need to extract at a particular zoom level (17) and resolution (1280x1280) satellite images in GeoTiff (.tif) format that cover my polygons and points in my GeoJson file. To obtain static images in ....
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1answer
26 views

Calculating EVI in Sentinel 2-2A

I am trying to calculate EVI for a Sentinel 2 Level 2A image collection. I have applied the Sentinel cloud mask provided by GEE but am not sure I am applying EVI correctly because my range is not ...
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0answers
16 views

Python code error invalid geojson

I have a javascript code that worked well , but when convert to python it's doesn't work and raise invalid geojson error . my code in java script is : var point = ee.Geometry.Point([52.55845586988192,...
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18 views

GEE, How to Remove Vertex Pixels

I made a classification mask of the layer and get the following figure: I got several vertex pixels. A vertex pixel is a pixel that attaches to a bigger group by just one vertex (shown in red circles)...
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17 views

Calculating loss area in a specific elevation class in Google Earth Engine

I would like to calculate the loss area in a certain elevation class in GEE. When I run the code 1 below, it gives the same amount as the total loss area in my study region, code 2. I switched ...
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0answers
20 views

Getting one image by month+year to export from MODIS NDVI using Google Earth Engine JavaScript

I previusly made a similar question to export one image with 12 bands for several years, Automate exporting one image by year for several years GEE in the previous one the images were from "MODIS/...
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24 views

Moran's I in Google Earth Engine

I am doing a project that is looking at NDVI in certain areas of Africa in Google Earth Engine. I want to take the areas where I have made an NDVI band and then calculate Moran's I so that I can ...
2
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1answer
26 views

Can't open Google Earth Engine scripts from journal articles

I am trying to launch GEE scripts from a few journal articles, but once opening the code editor, I can't access the assets other authors worked with to see the full analysis. Here is an example, this ...
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1answer
24 views

How can I automatically deselect a mapped layer in Google Earth Engine?

I am currently mapping land cover changes between two years, e.g. 2001 and 2010. The code I am writing adds the Land Cover layers to the map for both years, so a map of 2001 and one of 2010. Then, I ...
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1answer
27 views

Error 400 when cloning GEE script locally

I need to modify google earth engine (GEE) scripts on my mac. I was hoping to run git clone https://earthengine.googlesource.com/users/... to get a local copy. Unfortunately, I get this response after ...
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0answers
18 views

How to reduce image overlap when selecting images in google earth engine

I have a river network and I want to select images over it. I obtained 94 images covering the whole area. However, I found some areas are covered by 4 or 5 images which are unnecessary and increase my ...
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2answers
25 views

Running only selected lines in Google Earth Engine

I would like to run only selected lines instead of the full script in Google Earth Engine. Is there any way to do so?
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1answer
25 views

Display points from CSV table (feature collection) in Google Earth Engine

Unfortunately, I cannot display the point data I uploaded as csv file. I specified latitude and longitude, the rest is unknown so I kept it at default. Can somebody help? Link to asset

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