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Questions tagged [sentinel-2]

Remote sensing satellites with Multispectral imaging capabilities

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1answer
6 views

Reducing images to list and array size mismatch

I want to convert a google earth image to a numpy array and use Google Earth Engine's Reducer.toList operation. But the size of array I get is different than the size of image as I see in image ...
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0answers
15 views

Sentinel2 classification in R [duplicate]

After preprocessing of Sentinel 2 imagery, now I have Level 2 of Sentinel 2 which has 10 bands. I want to run classification of this imagery in R. However, I have never learned R. So could you please ...
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1answer
25 views

What are the other bits in Sentinel's QA60 band?

According to this page on Google Earth Engine documentation bit 10 is 1 for dense clouds, and bit 11 is 1 for cirrus. The documentation doesn't say anything about all the other 14 bits that can be set,...
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1answer
23 views

Clipping multi-band Sentinel-2 composites in ArcMap?

I am using Sentinel-2 images and I want to clip the image with a shape file I made. (The shape file was smoothed with Smooth polygon with a 10m PAEK tolerance). I have tried the Raster clip tool and ...
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0answers
48 views

Questionable data on single channel satellite bands vs. RGB composites

I am using Sentinel-2 images for a given region. I have all the separate bands and a merged RGB file, which comes standard with a download from ESA's API. Now I'm running some code where I separate ...
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1answer
40 views

How to extract values from metadata in sentinel 2 images

I am trying to composite an image with the mean value of the METADATA layer "CLOUDY_PIXEL_PERCENTAGE" for every pixel. My goal is to do this for monthly mean values, but I can't find the way to ...
2
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1answer
102 views

Data smoothing of Sentinel-2 NDVI time series chart in Google Earth Engine?

I am exploring Sentinel-2 time-series NDVI with Google Earth Engine. In another post I learned how to plot a NDVI time series chart. I know that there are many smoothing methods for reducing NDVI ...
2
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1answer
63 views

Cloudfree images in small area from Sentinel-2

I have a similar question to this one here: Filter Landsat images base on cloud cover over a region of interest Different from the linked question I would like to find a more general solution that is ...
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28 views

Issues calculating RedEdge indices from Sentinel 2 Data

I have calculated NDVIre3 from Sentinel 2A MS data in QGIS. As a pre-processing step, the Sentinel 2 bands (L1C product) were corrected using DOS1 algorithm available in QGIS 3.4.1 SCP plugin. The ...
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1answer
33 views

Download and Browse Sentinel data from AWS

It's been a while since I downloaded or browsed Sentinel data in AWS from http://sentinel-s2-l1c.s3-website.eu-central-1.amazonaws.com/tiles/ But I can not access this website anymore. Is it closed ...
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0answers
37 views

How to detect cloud's shadows with Sentinel2/SentinelHub?

I'm trying to detect clouds and their shadows on Sentinel2 images with SentinelHub service. For clouds detection, SentinelHub team has developed a good tool but I would like to detect cloud's shadow ...
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0answers
22 views

Sentinel2 CLOUDY_PIXEL_PERCENTAGE Metadata Wrong

I'm working with Sentinel2 data in Google Earth Engine and trying to filter out cloudy images/granules. When I filter by CLOUDY_PIXEL_PERCENTAGE < 50, I still get some images that are fully cloudy -...
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0answers
60 views

gdal_translate Resample different min max values

I tried to resample a Sentinel2 GeoTiff with a 20m resolution to 10m resolution using gdal_translate: result = gdal.Translate(outFile,resampleBandPath,format="GTiff",width=10980,height=10980,...
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0answers
77 views

Sentinel 2 preprocessing with R

I need to transform Sentinel 2 L1C imagery to preprocessed Level 2A data. Ideally this should happen in R, as the remaining processing stack is already done in R. Are there ready preprocessing ...
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1answer
65 views

Rasterio showing single band images wrong

I'm using rasterio in Python at the moment, and I have no problem when I'm dealing with RGB satellite images. However, if I try using singleband Sentinel 2 images, or a singleband Sentinel 1 image, ...
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2answers
40 views

How to get latest picture of my city from sentinel 2?

I was trying to get latest picture of my city from Sentinel 2, but had no success. I have registered on Copernicus website, found my city and drew a square around it. Then I clicked the "search" icon, ...
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1answer
27 views

Stripes between 2 images of Sentinel 2A (Level-1C)

Why do i get these stripes between 2 images of Sentinel 2A? (Figure) I notice that this happened for 2 images of different sensing date (even they're just 3 days away). Has anyone had this ...
2
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1answer
35 views

Performing Supervised Classification on Sentinel Image using ArcGIS Desktop?

Is it possible to perform supervised classification on Sentinel Satellite Image with the minimum error. I compared two raster, one being the manual classification of an area using Photoshop CS6 and ...
2
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1answer
288 views

Creating Sentinel-2 NDVI time series chart in Google Earth Engine?

I am exploring Sentinel-2 time-series NDVI with Google Earth Engine. In another post (here) I calculated and exported NDVI values from Sentinel-2. Now I would like to create a NDVI time series chart, ...
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1answer
38 views

Get a list of all the images that match the conditions in Google Earth Engine (not only the first)?

Normally when I run this code I get the least cloudy image but I want to know what the other images are. I use this code: var image = ee.ImageCollection('COPERNICUS/S2') .filterBounds(...
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0answers
17 views

Satellite image in ArcGIS displaying bluish

This exported raster has the same setting of the original one, but it changes its displaying. I am generating it with export data. This is the original image (temporal file) This is the exported "...
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32 views

13 band image acquired from Google Earth Engine not displaying well in ArcGIS

The image is displaying all dark I tried to set it the three band of true color but It remains dark The image is acquired from Google Earth Engine, is a Sentinel 2A image which I did not make ...
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1answer
84 views

GEE. : Exported bands must have compatible data types; found inconsistent types: UInt16 and UInt32

What are the possible reasons for this error? This is the code: Map.addLayer(PuntoQuellaveco1); Map.addLayer(operaciones); Map.addLayer(Abast); var image = ee.ImageCollection('COPERNICUS/S2') ....
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1answer
59 views

Search Sentinel-2 images using python api

Based on the documentation here, I wrote the following script: from sentinelsat import SentinelAPI, read_geojson, geojson_to_wkt from datetime import date api = SentinelAPI('user name', 'password', '...
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1answer
31 views

Filter sentinel 2 images that have empty areas

When trying to download a clipped area from the sentinelhub API python library, it returns images from 2 different orbits: One that passes right on top (Right pic), and the image is full, and a orbit ...
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0answers
43 views

What is producing the blue blotches and squiggles from greenest pixel mosaic of Sentinel-2 data

I've filtered Sentinel-2 by a date range and location, run and cloud mask and calculated NDVI, and created a greenest pixel mosaic. There are blue blotches and squiggles produced in a natural color ...
2
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1answer
121 views

GEE Export.image.toDrive output not matching bounding box?

I am new to GEE and javascript. Copy-pasting here and there, I managed to put together this code that extracts NDVI from cloud-free Sentinel-2 images on GEE. I created a fusion table from a KML with ...
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1answer
46 views

Fmask 4.0 on Sentinel data from Sinergise/AWS

I have downloaded Sentinel data from the AWS bucket on S3. How can I place this into the appropriate SAFE folder structure to run the Fmask cloud masking software (https://github.com/GERSL/Fmask)?
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17 views

Is there a way to classify a satellite image in arcgis using all bands for more accurate classification?

-I want to classify a Sentinel 2A image which has 12 bands and a Landsat 8 satellite image wich has less bands. -How do I overcome the mountains shade? -In theory there would be 5 classes if you ...
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1answer
43 views

Making subset of Sentinel-2 with rasterio?

I am looking for a solution to my problem with rasterio. I want to download just a specific part of the image from AWS based on lat lon coordinates. Rasterio offers a great tool (window) although it ...
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0answers
355 views

Earth Engine Sentinel-2 atmospheric correction

I want to run some time series analysis on sentinel-2 data in EE for my master thesis. However the algorithms for Sen-2 in EE are scarce. The biggest issue is that there isn't any for atmospheric ...
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1answer
37 views

Sentinel-2 Query scihub apihub wget missunbg results

when I perform a search using https://[username]:[password]@scihub.copernicus.eu:443/dhus/search?q=footprint:"intersects(41.9000, 12.5000)" AND ((platformname:Sentinel-2)) in firefox I only get to see ...
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0answers
31 views

Color different of two Sentinel 2A (L1C) images from the same sensing date

i'm new to this GIS Q&A websites and remote sensing as well, so sorry for this too basic question. It's about my Sentinel 2 (Level-1C) images. I downloaded 2 images with the same sensing date (09-...
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2answers
245 views

Google Earth Engine API: How to select an image from an image collection based on NDVI value?

I want to select the image with lowest median NDVI to represent bare ground cover from Sentinel-2 image collection for my region of interest (<5% cloud). I have a boundary file pre-loaded on ...
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2answers
63 views

Remove irregular edge in Sentinel image

I have 2 Sentinel files that I join in R: library(raster) y = raster("./L1C_T36MZE_A016248_20180802T075248.tif") z = raster("./L1C_T36MZE_A016291_20180805T080721.tif") ss = raster::merge(y,z) plot(...
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1answer
44 views

Struggling to install sentinelsat

I am struggling to install sentinel sat. After exhausting all my options I have decided to ask if someone can just guide me in the right direction. Firstly I tried simply: sudo apt-get install ...
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0answers
111 views

Displaying a raster layer (Sentinel-2) MapServer/WMS

I have a lot of raster data Sentinel-2, I need to display them on the map with MapServer/WMS. when I saved the data as images through the QGIS, they were displayed correctly, because as much data I ...
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2answers
166 views

Sentinel 2 Bands + Deep Learning

I am trying to classify 9 different classes of Land use deploying Resnet Architecture. Sentinel images come with 13 bands and in RS we normally combine different bands for different classes for ...
2
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1answer
287 views

Downloading Sentinel-2 data from Google Cloud Storage with Python?

I'm trying to download Sentinel-2 data from the Google Cloud Storage and basically adapted the FeLS-module (great work, by the way!). As it is done in the module, I also download the index.csv first (...
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1answer
50 views

Cloud Removal through Sen2cor for sentinel 2 images?

I have this imagery for an area of germany. According to docs of Sen2Cor, it states it can only remove haze and light clouds, i wanted to ask would it be possible to remove something as dense as shown ...
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1answer
237 views

Exporting true color sentinel image in Google Earth Engine?

I tried to download a sentinel image, but it seems not to work. It downloads a one band image and not 4,3,2 rgb combination as coded. This is the code I'm using that just downloads 1 band: var marco ...
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2answers
330 views

How to download Sentinel2 L1C using AWS Python SDK (boto3)

The permissions for Sentinel2 L1C changed today https://www.sentinel-hub.com/faq/how-will-access-permission-changes-aws-bucket-affect-users-accessing-data-directly-non-sentinel# How can I send a '...
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2answers
277 views

What happened to AWS Sentinel2 website?

There used to be a website where you could browse the Sentinel 2 data hosted on AWS S3. I used to follow the link from the Sentinel 2 information page: https://registry.opendata.aws/sentinel-2/ Is ...
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0answers
118 views

Raster color after crop image by mask with rasterio

I have stacked 4 bands of Sentinel which have 10 meter of spatial resution. I I did it with command above: command = 'gdal_translate SENTINEL2_L1C:{scene_file_name}.SAFE/' \ 'MTD_MSIL1C....
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0answers
144 views

Sentinel-1 GRD and Sentinel-2 L1C on AWS bucket policy

Recently I started to work with Sentinel-1 data hosted on AWS S3 bucket 'sentinel-s1-l1c'. The bucket is requester pays and requires AWS signature version 4. I need to access the files via HTTP GET ...
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1answer
139 views

sentinelsat Python API error in download

I am having a go at using the sentinelsat python API to download satellite imagery. However, I am receiving error messages when I try to convert to a pandas dataframe. This code works and downloads my ...
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1answer
171 views

Exporting data with different data types in Google Earth Engine. How to make data consistent to download?

I am working with Sentinel-2 data in GEE and I added NDVI and a specific SAVI as new bands to an Image. I had an error downloading 6 bands (RGBI, and VIs) because the data type is not the same: ...
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0answers
129 views

Centroid latitude/longitudes of Landsat pixels

I was successful in getting centroid coordinates for pixels in Sentinel 2A image (10m by 10m). But Landsat (30m by 30 m) posed a problem. from osgeo import gdal # Open tif file ds = gdal.Open('C:\\...
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1answer
176 views

Google Earth Engine data acquisition with a multipolygon shapefile uploaded as table asset

I uploaded a shapefile with some polygons of my area of study as a asset table in Google Earth Engine. Now I am trying to export the displayed data (several Sentinel-2 bands) as GeoTIFF to my Drive ...
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1answer
68 views

Sentinel-2 Swath identifiers

Is there a standard way of referring to a repeat-swath of a Sentinel-2 MSI acquisition? For example the swath shown in the figure below is repeated every 5 days. (Here it is further split in to ...