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Questions tagged [sentinel-2]

Remote sensing satellites with Multispectral imaging capabilities

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No features in Sentinel 2 Level 2A Harmonized dataset

I am running into a problem I am trying to calculate MCARI and NDVI from the Sentinel 2 Level 2A dataset and it doesn't have any feature for the data range from 2017 to Dec 2018. Can anyone advise me ...
Ibtihaj Ahmad's user avatar
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xxx.reduceRegion is not a function [closed]

I'm new at coding in Gee and I have a "xxx.reduceRgion is not a function" error (line 94). The overall task is to extract 4 different indices from Sentinel-2 images for 40 sites in Canada, ...
Melanie Desrochers's user avatar
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36 views

Sentinel-2 QA60 band missing?

When performing cloud masking for Sentinel-2 images using QA60 band, I found that after February 2024, the QA bands of Sentinel-2 images are all "masked". In this case, I can't perform cloud ...
Chang Zhou's user avatar
1 vote
1 answer
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GEE - Mean Cloudiness in a given time range, Sentinel producing multiple points for each day

I am trying to create a plot that represents mean cloudiness against day of year using Sentinel-2. As the plot shows, there are multiple points for a given day and it's very choppy. Should Sentinel be ...
eamrl's user avatar
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Terrain and cloud correction for Sentinel-2

I want to filter out clouds and correct for terrain ruggedness in order to prep an image for a random forest model to create landclass raster files. This is the code I wrote. When I run it, it seems ...
Ray Dodd's user avatar
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Sentinel-2 swaths explanation

For the image sent in the attachment, the swath width for Sentinel 2 is 290 km and when I measure the width of this image in the EO browser it is ~290 km and that means there should be one pass of the ...
user243807's user avatar
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How to detect cloud in time series Sentinel using ArcGIS Pro and Python

This is my code: import arcpy from datetime import datetime from arcgis.gis import GIS from arcgis.raster import ImageryLayer # Connect to GIS (with authentication) gis = GIS("https://www.arcgis....
user243645's user avatar
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Can't reduce EE Image Collection after a join

I'm trying to select Sentinel-2 (S2) images with less cloud probability inside my AOI (not on the whole scene). So I followed the steps bellow: I've generated an auxiliary feature, getting the mean ...
avrechi's user avatar
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41 views

How to clip a raster file using a GeoJSON?

I am trying to clip or crop out the area of interest from a multi-spectral tiff file downloaded from Sentinel-2, using Rasterio and GeoPandas. For reference here are the code snippets - import ...
Anurag-Sharma's user avatar
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26 views

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
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Calculating the least-squares fit of two Sentinel 2 rasters in python

I'm trying to replicate the Single-band–multi-pass method of methane column retrieval from Sentinel 2 data as outlined here. https://amt.copernicus.org/articles/14/2771/2021/ They give the formula of: ...
Zelcon01's user avatar
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TypeError: Image data of dtype object cannot be converted to float

The main functionality of the script is to extract GeoJSON data, load it into Earth Engine, retrieve Sentinel-2 imagery, calculate the mean NDVI, and visualize the NDVI for each GeoJSON feature. My ...
Muhammad Waqas's user avatar
2 votes
2 answers
124 views

Error in downloading Sentinel 2 images rstac with sf::gdal_utils

I'm trying to follow the example providede here https://stacspec.org/en/tutorials/1-download-data-using-r/ to download Sentinel 2 data from a defined bounding box determined by a custom shapefile that ...
Roberto Horn's user avatar
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1 answer
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Using large datasets for training in Google Earth Engine

I created a training dataset using polygons outside of GEE and I want to use them now in GEE for a supervised classification in Sentinel-2 images. However when I try to create training points from it ...
rrwork___'s user avatar
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Extract, plot and export as a table a vegetation index time series from multipoint feature collection in Earth Engine

Reference is to a tread I posed years ago and was solved Extract pixel values from several bands of an image and export in a single table in Google Earth Engine The challenge now is to create S2 NDVI ...
Lollo's user avatar
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How to merge several Sentinel-2 images using the median for the overlapping areas?

I'm having a little bit of trouble coming with the best way to do this. I have several rasters that contain each 12 Sentinel-2 bands, not all from the same tile that I want to do some preprocessing ...
rrwork___'s user avatar
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Using BFAST change detection algorithm for Sentinel -2 images

I am interested in the BFAST change detection algorithm. I saw that this algorithm uses Landsat images. Is it possible to use BFAST algorithm for Sentinel - 2?
Sraboni Sarker's user avatar
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42 views

Export and download each Sentinel-2 satellite data by date from Google Earth Engine

I would like to download Sentinel-2 satellite data for the year from January 1, 2023 to December 31, 2023 from Google Earth Engine, respectively by date. I've written and run the script below, and I ...
Seongjun Lee's user avatar
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71 views

Google Earth Engine SNIC segmentation reproject method

I am trying to do SNIC segmentation and then classification in Google Earth engine. My problem is that every time I change the zoom scale, it gives me a new result with a recalculation. For this I ...
user217304's user avatar
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GEE: out of memory

I am trying to run this code in GEE but I keep getting this error: Runtime: 33m (started 2024-03-03 15:08:13 +0100) Attempted 5 times Error: Execution failed; out of memory. (Error code: 8). I ran it ...
Swagatalaxmi Das's user avatar
1 vote
1 answer
45 views

Direct use of Sentinel 2 L2A imagery for vegetation analysis

I am working on my research to calculate the green vegetation in the study area using sentinel 2 L2A 10m resolution. Do I need to perform any correction or smoothing before analysis?
Monika Jirel's user avatar
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1 answer
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Plotting Sentinel-2 Level-2A Scene Classification in GEE

I am interested to visualize the result of Scene Classification (SC) that is automatically performed during the production of level-2A products. I am using GEE. I have read this page and this page and ...
Sina NAKHOSTIN's user avatar
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1 answer
31 views

Trying to create mask to eliminate false NDVI numbers in GEE time series analysis using Sentinel data

It keeps given me the error that ndvi.gte is not a function, I shared my code below: var images = sentinel.filter(ee.Filter.date(startDate,endDate)).filterBounds(geometry) print(images); var ndvi = ...
Eppez's user avatar
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2 answers
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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
1 vote
1 answer
129 views

the main difference between using sentinel-hub API and free STAC API for getting to sentinel 2 images [duplicate]

I'm a bit confused. What is the main difference between using the Sentinel Hub API and the free STAC API for downloading Sentinel-2 satellite images? Are there any advantages to using the paid ...
nearliet's user avatar
-1 votes
1 answer
99 views

Rendering all bands offers only 3 options instead of multiple [closed]

I am very new to remote sensing using QGIS. I dont understand why sometimes when rendering all the bands, I only get 3 options instead of multiple. I am using sentinel 2 and I am trying to make a ...
RemoteSensingYoungin's user avatar
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119 views

Combining Sentinel-1 and Sentinel-2 for classification in GEE

I have Sentinel-1 data with VV and VH bands at a 10-meter resolution, while my Sentinel-2 data consists of 10 bands with a mix of 10-meter and 20-meter resolutions. I intend to utilize both Sentinel-1 ...
user30985's user avatar
  • 357
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16 views

Filter out tiles with incomplete data take

I am facing an optimisation issue when downloading images from sentinel-2 with the EOdag API. Since the satellite orbits does not match up with the MGRS tiles, some of the tiles I download have ...
Even Lauvsnes's user avatar
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Atmospheric Correction of Sentinel 2 L1C images

I'm trying to perform Atmospheric Correction of Sentinel-2 LIC images using the repo of Elias Berra as suggested in the post Multiple atmospheric correction for Sentinel-2 L1C imagery in Google Earth ...
rekha's user avatar
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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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66 views

Error when trying to export monthly images from Sentinel 2

I have the following code in Google Earth Engine (GEE) to export monthly bands and sctral indices from Sentinel 2: Map.centerObject(table); /** * Function to mask clouds using the Sentinel-2 QA band ...
Nikos's user avatar
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1 answer
135 views

Corrupted zip files when I download Sentinel-2 L2A Granules using the new Copernicus Data Space Ecosystem

I would like to download Sentinel-2 L2A Granules using Open Data Protocol (OData) with new Copernicus Data Space Ecosystem. I have followed some tutorials on how to do it. https://dataspace.copernicus....
Ilias Machairas's user avatar
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70 views

Trouble downloading Sentinel image from SCP Plugin

I am trying to download Sentinel 2 image from SCP Plugin. However when I find the images and try to preview it, it wont appear in the preview panel neither it can be downloaded it says error ...
Ruru's user avatar
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0 answers
28 views

Spectral values of vegetation

How do I use Google Earth Engine to extract the spectral values of Sentinel-2 2A data from winter wheat samples? In the data I obtained, the reflectance of some dates in the blue band is greater than ...
Lix's user avatar
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1 vote
0 answers
69 views

Crop Sentinel-2 raster using a geometry leaves pixels around the edges

I want to crop Sentinel-2 images using a geometry. However, whenever I crop my image, there are some pixels around the border of the raster. For example, the image below is the band 2 of sentinel-2 ...
rrwork___'s user avatar
1 vote
1 answer
76 views

Filter Sentinel-2 imageCollection with different tiles

I am working with Google Earth Engine Code Editor. I am trying to load a collection of Sentinel-2 images as shown below: var s2RawData = ee.ImageCollection("COPERNICUS/S2_SR") ....
sermomon's user avatar
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154 views

Resample Sentinel-2 bands from 20m to 10m using GEE code outside of GEE

I want to resample the 20 meters bands of Sentinel-2 to 10 meters. I found this piece of code in GEE and after trying it out, this is what I would like to do to my Sentinel images but outside of GEE. ...
rrwork___'s user avatar
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143 views

Sentinel-2 2A Surface Reflectance

How do I use google earth engine to extract the spectral values of Sentinel-2 2A data from winter wheat samples? In the data I obtained, the reflectance of some dates in the blue band is greater than ...
Lix's user avatar
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1 vote
1 answer
109 views

Cloud detector s2cloudless run locally is masking non-cloud

I am trying to use the Cloud-detector on locally stored S2-Images in .SAFE format (L1C). I ran the cloud detector and the cloud mask that is returned comes completely wrong. Is there something wrong ...
rrwork___'s user avatar
-1 votes
1 answer
63 views

Calculating Normalized Difference Infrared Index from Sentinel-2 data [closed]

is it possible to use Normalized Difference Infrared Index together with sentinel 2 to develop soil moisture map? If possible, let me know the formula of NDII.
Win's user avatar
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2 votes
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90 views

Fmask algorithm identifies buildings as Clouds for Sentinel-2

I am using the Fmask algorithm in order to mask clouds from my Sentinel-2 L1C images. I am doing this in python and I am following the documentation found on their website https://www.pythonfmask.org/...
rrwork___'s user avatar
0 votes
1 answer
188 views

Get MEAN SOLAR AZIMUTH ANGLE from Sentinel-2 L2A product

I was coding in Google Earth Engine and one of the functions I run for cloud and shadow masking used the MEAN_SOLAR_AZIMUTH_ANGLE property. shadow_azimuth = ee.Number(90).subtract(ee.Number(img.get('...
rrwork___'s user avatar
1 vote
0 answers
51 views

Setting the nodata value

I have three Sentinel 2 rasters for band 4 (named tile1_B04, tile2_B04, tile3_B04) and my area of interest is clipped by merging these 3 rasters. 2 out of 3 rasters have 0 pixels in certain portions. ...
rekha's user avatar
  • 11
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0 answers
27 views

How to color correct a mosaic raster

I am building a composite image to create a wetland predictor variable and I will then run RF to classify wetlands. The first step is to mosaic Sentinel-2 images (4 bands, RGBI) and then create a ...
Erioderma's user avatar
  • 545
5 votes
2 answers
79 views

Discrepancy between actual size of coordinates and clipped satellite image box sizes

I've marked an area of interest on a map (aoi2) and applied the clip() function to satellite images based on these coordinates. However, there is a discrepancy between the actual size of the ...
DonghoSHin's user avatar
0 votes
1 answer
90 views

Google Earth Engine time series analysis sediment error

I am a beginner in learning about GEE. I am now calculating sediment using Sentinel 2a satellite images in GEE, but I encountered an issue as follows: NDSSI Mosaic: Layer error: ImageCollection....
Ikrima's user avatar
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0 votes
1 answer
98 views

GEE can't find SR Sentinel-2 image of a specific date, but I can download it on Copernicus Browser

When I try to access a specific Sentinel-2 image on GEE, it doesn't show any results, even though I can find and download it in the Copernicus Browser. This is the code I have tried: var dataset = ee....
Martina Stoop's user avatar
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0 answers
44 views

Difference between two multiband Sentinel-2 images

So I was using ml4floods, a machine learning tool in python to detect flooded areas in satellite imagery. The input it takes is a 13 band Sentinel 2 (L1-C) image. I ran the model on the Sentinel 2 ...
Muhammed Omer's user avatar
2 votes
2 answers
43 views

On the edge of the swath and the reflection of the sun

In the Sentinel-2 image data, there is an overexposure near the water surface. I have examined several images and found that it is common to the eastern edge of the swath, so I think it is a ...
aogorou's user avatar
  • 23
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0 answers
97 views

Efficient way to handle large Sentinel - 2 imagery dataset

I need to automatically crop large number of polygons (~200K in a geojson file) from Sentinel-2 images varies both in extent (~30 tiles) and time (from May till August, say it's about 30 images) so if ...
user172775's user avatar

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