Questions tagged [sentinel]

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Missing tiles in Sentinel 1 data

I am working with VV/VH Sentinel 1 descending data in Google Earth Engine but there are large areas misisng as shown in the screenshot below. The image indicates the mean data from 1-31 August. The ...
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-1 votes
0 answers
23 views

Resample all bands of sentinel image collection to 10 m [closed]

Sentinel bands have a different spatial resolutions (10m, 20m, 60m). I am trying to compute mNDWI (green - swir)/(green+swir). the problem is the two bands in all image collections have different ...
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24 views

Sentinel-1 No products found - Looking for alternatives

I'm interested in doing flood mapping for a specific region, using SAR images from before and after the event. However, Sentinel-1 images are missing for this region (no products for more than 8+ ...
0 votes
0 answers
97 views

NDWI for Sentinel 2 images containing clouds

I need some advice regarding NDWI and Sentinel 2 images containing clouds. I need to apply NDWI to a Sentinel 2 image (S2B_MSIL2A) captured the next day of a weather event. In order to achieve it, I ...
0 votes
0 answers
29 views

DEM from Sentinel 1 C-band SAR

I have been using the standard protocol (ESA/ASF) to generate DEMs (actually DSM which is what S1 C-band gives) from Sentinel-1 C-Band SAR tiles. My locations are in the Eastern Himalayan foothills (...
0 votes
1 answer
44 views

Excluding images S2 that are not complete in Google Earth Engine

I work in a place where need to use several images S2, I have some images like a triangle, I know it's because of the orbit but how can I exclude them from my collection? This is a example ID: ...
0 votes
1 answer
103 views

How to obtain the daily Temporal variation chart using Sentinel 5p methane

I want to generate the daily temporal variation chart of methane concentration over India for the years 2019, 2020, 2021 and 2022. The average methane values for a single day, say, 1st January is to ...
1 vote
1 answer
465 views

Mapped function's arguments cannot be used in client-side operations

I am trying the below code to perform spectral dilation in GEE but gives me an error: spectral dilation: Layer error: A mapped function's arguments cannot be used in client-side operations The code ...
0 votes
1 answer
264 views

How to Export latitude and longitude of ROI from Google Earth Engine

I want to export the latitude and longitude values as a CSV file from GEE. I tried the below code, but this code gives me round off values of the coordinates var sentImage = ee.ImageCollection('...
0 votes
0 answers
70 views

Solving the error << TqdmKeyError: "Unknown argument(s): {'delay': 2}" >> when downloading Sentinel data using the sentinelsat API in Python

I am trying to download Sentinel-3 data using the Sentinelsat API for Python. When running the code, I am getting the following error: TqdmKeyError("Unknown argument(s): " + str(kwargs))) ...
0 votes
0 answers
23 views

SentinelHub: Failed to create layer

I installed plugin from SentinelHub, and logged in. But when I want to create a new layer, it shows "SentinelHub: Failed to create layer Sentinel-2 - L1C - SWIR (WMS, 2021-11-05, 100%, mostRecent,...
0 votes
1 answer
51 views

sen2cor failing with "TCI image export failed"

I'm trying to calibrate some Sentinel L1C products to get level 2 data, but I always end up with the following message. Any idea what could cause that? I have tested it with sen2cor 2.8.0 and sen2cor ...
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0 votes
1 answer
145 views

SentinelHub WebFeatureService - finding the right tile from coordinates

I'm trying to obtain satellite data for given coordinates by AWS, following tutorial here: https://sentinelhub-py.readthedocs.io/en/latest/examples/aws_request.html What I'm getting is multiple tiles, ...
1 vote
1 answer
151 views

How to read in polygonal section of a GeoTIFF

Here is a link to an example cloud-optimized GeoTIFF: https://copernicus-dem-30m.s3.amazonaws.com/Copernicus_DSM_COG_10_N08_00_W068_00_DEM/Copernicus_DSM_COG_10_N08_00_W068_00_DEM.tif I assign this ...
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8 votes
2 answers
745 views

How to retrieve Sentinel images without significant cloud coverage using Python

Background I am trying to retrieve images of certain areas. My aim is to get images without much cloud on them. I would like to specify the percentage of pixels with clouds on them. What I am doing ...
  • 356
0 votes
1 answer
149 views

Stacking Landsat band in Sentinel collection using Google Earth Engine JavaScript API

I have worked on the following code to obtain a fusion of both sensors but when I generate it I get Landsat as an additional property, what can I do? var s2 = ee.ImageCollection('COPERNICUS/S2') ....
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1 vote
1 answer
37 views

Batch downloading 'offline' Sentinel products

I'm trying to download a 5 year timeseries for Canada of Sentinel 3 SLSTR LST data. Most of the data is stored 'offline' and has to be restored/ordered. However, it is limiting me to 20 scenes or so, ...
1 vote
0 answers
90 views

Sentinel 3 SLSTR data via Sentinelsat?

Im trying to query for Sentinel 3 SLSTR products using Sentinelsat as follow: products = api.query(footprint, date=('20200101', '20201201'), platformname='...
0 votes
1 answer
218 views

Problem in downloading specific bands of one Sentinel product

I'm working on developing software through it user can upload a .shp file containing some areas and see the NDVI as a WMS layer on map. To achieve this, at first step, after uploading spatial data by ...
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0 votes
0 answers
32 views

How to use disk files to replace memfile?

I am trying to collect Sentinel images and compute their NDVI which is done quite simply. However, I need to check determine all shapely multipolygons and map a NDVI value for each. I've decided to ...
1 vote
2 answers
2k views

Best practice for opening Sentinel 2 data with Python

I'm just trying to learn how to process Sentinel 2 data with Python. All of the tutorials seem to use the data in GeoTIFF format. So I opened the data with SNAP and tried to export as a GeoTIFF but it ...
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4 votes
1 answer
903 views

Temperature using Sentinel 3 in Google Earth Engine

I am trying to find information on how to obtain surface temperature layers - LST - from Sentinel 3 on Google Earth Engine but I am not getting anywhere. Is there any method to do it? The Sentinel 3 ...
2 votes
1 answer
537 views

Georeferencing Sentinel-3 LST product

I have been stuck attempting to convert Sentinel-3 LST netCDF data to geotiffs for a while now as part of my master's thesis. Firstly, an introduction to the data. It is packaged as follow: The data ...
1 vote
1 answer
231 views

Sentinel-1 radar data all zeros with Python SentinelHub API

I am requesting Sentinel-1 SAR data but rather than throwing an error the code is just returning zeros. My request: bbox = BBox([-145.8, 60.96, -146.5, 61.38], crs=CRS.WGS84) bbox_size = ...
1 vote
0 answers
221 views

Mean monthly NDVI from Sentinel to CSV-files

I am trying to create monthly NDVI maps from Sentinel in Google Earth Engine. The script that I'm using is from things I gathered around the internet. When I try to download this to a CSV-file, I get ...
2 votes
2 answers
2k 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 ...
0 votes
0 answers
22 views

Seeking Moderate to High Resolution Forest Fire Before and After Images

I'm trying to search through the moderate to high-resolution satellite image data sets for imaging that shows forests both before and after a forest fire in order to assess the burn severity and the ...
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1 vote
1 answer
277 views

Authentification failed when using SentinelHub Plugin in QGIS

I downloaded SentinelHub v2 plugin into QGIS 3.14. When I want to log in with my ID (from SentinelHub / Configuration Utility / ID) it says "Authentification failed, check your credentials"....
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1 vote
1 answer
828 views

Rasterio: select subset of georeferenced image by lop left coordinates and height, width

I want to subset a 10m sentinel dataset using rasterio window modul. I have tried using the window = from_bounds(...) part in .read() however it requires for me to put in the left top right bottom ...
0 votes
2 answers
319 views

Sentinel-3 single image per day

I have created a list of dates from which I would like to get Sentinel3 images, only to find that I have multiple images per day. How can I reduce it to 1 image per day? I intend to do use median for ...
0 votes
1 answer
86 views

Seeking Sentinel L1C images (.SAFE) from 2015-2019 since no longer available on Copernicus Open Access Hub

I am looking for Sentinel images from before 2019 in L1C quality and .SAFE format, as I want to correct them with sen2cor in SNAP to convert them to L2A quality. Where can I find them now that they ...
1 vote
0 answers
329 views

Is sen2cor available as a Python library or can it only be used through the command line?

I am looking to correct older Sentinel 2 data to have BOA reflection and would like it to be part of a Python script (I'm working in Windows), but looking online it seems that you can only run sen2cor ...
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1 vote
1 answer
97 views

How to identify landuse change with Sentinel data - specifically grassland/woodland to arable cropland changes

I have an assignment to assess whether it is viable to use sentinel data to monitor illegal changes of landuse from Grassland/Woodland to arable cropland. This is the first time my environmental ...
1 vote
1 answer
1k views

Max Pixel Value Error in Google Earth Engine

I've written below code in Google Earth Engine for carbon monthly product from sentinel-5 but when I click on the run button for save in Google drive, it shows error. How can I solve this problem? ...
2 votes
2 answers
334 views

Manipulating Sentinel-1 SAR Imagery to get Pixel Information

For S1 SAR imagery data, how would I go about accessing the data of individual pixels? I need to analyze pixel intensity based on their lat and lon coordinates. I know this information is viewable in ...
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3 votes
1 answer
729 views

Satellite image disappearing when zooming in

I'm trying to get a satellite image using the SentinelHub plug in. This works, however, when I zoom in to make my other layers clearer (roads etc.) the satellite image disappears and the background ...
0 votes
1 answer
154 views

Calibration annotation data for Sentinel-1 images downloaded from Sentinel Hub?

I received some Sentinel-1 tiff images that were downloaded via the WCS service, so they're just the tiff files, not the full SAFE-format products. They're for the IW GRD product, and my ...
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2 votes
1 answer
250 views

Sentinelsat: Error trying to download from Norweigan mirror colhub.met.no

I am trying to download the Sentinel 2 images over an area of Western Norway. Since the ESA archive is very slow, I am trying to use the Norwegian mirror for Sentinel instead (https://colhub.met.no/#/...
1 vote
1 answer
574 views

How to download tile from Amazon’s Sentinel-2 service

How do I access Sentinel-2 imagery via Amazon? I'm new to GIS and have been relying on USGS earth explorer and EO Browser but would now like to access satellite imagery with higher resolution. I ...
2 votes
2 answers
616 views

Storing image with rasterio as gtiff modifies image histogram

I'm trying to store and image as as gtiff, but the resulting image is changed, and I can't explain why. I'm reading sentinel jp2 band images using rasterio, I rescale these images from [0-10.000] to [...
0 votes
1 answer
511 views

Running script with Sentinel 2 images?

How can run this script with Sentinel 2 images? // Use a DateSlider to create annual composites of this collection. var collection = ee.ImageCollection('LANDSAT/LC08/C01/T1'); // Use the start of the ...
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2 votes
0 answers
231 views

How to correct depth values with tide data? [closed]

We are trying to derive bathymetry using sentinel images using QGis 2.18. The training data is from a boat gps track taken in 2 days. The depth value captured needs to be corrected for tidal ...