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Questions tagged [imagecollection]

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Sentinel-1 query throws error: Collection.geometry: Unable to perform this geometry operation. Please specify a non-zero error margin. (Error code: 3) [closed]

I am trying to pull Sentinel-1 data via GEE for my master thesis and have found the following code to simplify things: https://github.com/adugnag/gee_s1_ard/tree/main/python-api It works perfectly, ...
Manu's user avatar
  • 1
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1 answer
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Mosaicking images within an image collection with the same day and month but different years

Following on from Mosaicking Image Collection by Date (day) in Google Earth Engine I wish to mosaic images for the same day of year, but across multiple years. For example, if I have a collection of ...
Jack's user avatar
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Export every Sentinel 2 image over a region of interest, not just the median

I'm trying to export Sentinel 2 images over a region of interest from 2010 to 2020 and I require every image and not just the median. I've tried using the following code : var dataset = ee....
Tejas Prasad's user avatar
-1 votes
1 answer
15 views

Clip a imagecollection with a feature of the AOI shape

I calculated the NDWI with values greater than 0. On the other hand, I loaded a shape, like AOI, which contain diferents ponds if one with an id. I would like to clip the NDWI imagecollection with the ...
Lua Vita's user avatar
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0 answers
25 views

Mapping hourly image collection over feature collection with daily aggregation of image stats

I have a feature collection ~ 1600 polygons across the U.S. I have an image collection (NLDAS) where each image is hourly data for the summertime (92 days) across 3 decades ~ 24 hours x 92 days x 30 ...
Ufuoma Ovienmhada's user avatar
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1 answer
30 views

Mathemetical operation with two imageCollections

I try to find relative humidity (RH), I created two different imagecollections (please see: 'ue' and 'ues'). Now I want to do RH= '100 * ue / ues' mathematical operation with these two image ...
CS_RT's user avatar
  • 15
0 votes
1 answer
41 views

Conflicting date ranges for COPERNICUS/DEM/GLO30 in Earth Engine

I'm trying to filter DEMs from the COPERNICUS/DEM/GLO30 ImageCollection in Google Earth Engine by date. However, the date range I'm getting from the collection seems incorrect, leading to filtering ...
Patschenkof's user avatar
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2 answers
69 views

Remove null images in an Image Collection

This is the code to generate an 36 length imagecollection from 2020 up to 2022: var months = ee.List.sequence(1, 12); // Create an image collection for each month var monthlyImageCollection = ee....
MohammadJavad Soltani's user avatar
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1 answer
42 views

Converting the output of a .map function into an image collection in Google Earth Engine using JavaScript

I am trying to retrieve monthly Sentinel-2 band data using zonal statistics (mean) and point buffer for further analysis. I have created monthly median composites from January to December of 2017 ...
David Appiah-Gyimah's user avatar
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1 answer
26 views

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('...
Nikos's user avatar
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-2 votes
1 answer
83 views

USING THE SENSOR INVARIANT ATMOSPHERIC CORRECTION - SIAC, CREATING AN IMAGE COLLECTION WITH THE OUTPUT FOR FURTHER ANALYSIS IN GEE

My aim is to atmospherically correct sentinel 2 level 1c image in Ethiopia, and then perform a cloud mask. My next aim is to create a monthly median composite of the atmospherically corrected / Cloud ...
David Appiah-Gyimah's user avatar
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1 answer
150 views

Get monthly NDVI and NDWI median for a year, from Landsat collection Google Earth Engine (GEE)

I am trying to get NDVI and NDWI per month, based on the median of the images in one month. For this, I am using Landsat8 collection an year 2018. I keep getting empty bands for the var monthlyStats. ...
Valentina Bravo's user avatar
1 vote
1 answer
48 views

Merge multiple histograms into a single table and export as CSV

I'm trying to merge multiple histograms of NDVI into a single table for future analysis I know how to export and download single histogram like in the second image, but I'm aiming for something that ...
Harel's user avatar
  • 91
0 votes
1 answer
69 views

Add condition for the last Image in an ImageCollection

I'm building a function that compute the difference between values in 2 images in an image collection. Here is the function I wrote : function DailyDifference(img){ var date_0 = ee.Date(img.get(&...
Aurélien Lengrand's user avatar
0 votes
1 answer
81 views

Selecting one Landsat image per year according to cloud cover using Google Earth Engine JavaScript API

I'd like to create a Landsat 5,7 and 8 Image Collection for a given location, selecting for each year (and within the January to march month range) the scene with the least cloud cover. So far I have ...
Daniel Falaschi's user avatar
-1 votes
1 answer
223 views

Removing images with all 0s from collection in Google Earth Engine

I have an image collection that contains a series of images (1 per year) from a previous analytical step. As part of that analysis, a dummy image (a 5-band image containing all 0s) was created for ...
nkwilder's user avatar
0 votes
1 answer
146 views

Filter images that are covered with my roi more than 80%

This is my collection with (453 elements) in it which I firstly added filterBounds(polygon): var collection = collection_L5.merge(collection_L7).merge(collection_S2); print(collection) But many ...
MohammadJavad Soltani's user avatar
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0 answers
53 views

Saving/Exporting Image Collection to asset in GEE

I am using MODIS image collection for irrigation mapping. Due to the outliers present in the MODIS dataset I applied Savitsky Golay filter in that image collection. And when doing other operation on ...
PRAMIT GHIMIRE's user avatar
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1 answer
332 views

Exporting values from Images in ImageCollection to CSV

I am working with rainfall monthly totals for a 30-year period using CHIRPS pentad. //1.Reference Period var historical = ee.List.sequence(1991, 2020) var months = ee.List.sequence(1, 5) //print(...
Adi's user avatar
  • 327