2
votes
Retrieve pixel value using SNAP-engine and Python for specific geographic coordinates
I know it has been two years, but there are three things:
You have to load raster data after retrieving a band
p=ProductIO.readProduct('/path/to/file.xml')
iwv=p.getBand('IWV')
iwv.loadRasterData() #...
- 83
2
votes
Accepted
Which time format does ESA use for Sentinel-3 file names?
This is the UTC time format according to the official source1, source2:
The time reference system in the SRAL/MWR Level-2 products is the Universal Time Coordinated (UTC).
- 8,208
2
votes
Google Earth Engine: Masking land out of Sentinel-3 imagery
I got this working eventually by modifying a different method I found someone using to mask clouds in Landsat.
//Create functions to mask land from mosaic
var getQABits = function(image, start, end, ...
- 151
2
votes
Sensing data Sentinel-3 time zone
As @JeffreyEvans said it's in GMT (or UTC to be more precise). This can be confirmed by checking out the time format seen in the manifest xml file, as well as the filename of the product.
This is the ...
- 319
2
votes
Accepted
Google Earth Engine finds Sentinel-3 images with no intersect with defined ROI
As far as Earth Engine is concerned, that image does intersect your ROI. If I run
Map.addLayer(band.geometry());
then I get this picture:
All of those black pixels in your image are, in fact, ...
- 10.5k
1
vote
Wrong projection- Creating GeoTIFF from Sentinel 3 Land Surface Temperature (LST)
Sentinel-3 products don't have rectangular grids so you cannot use a classic transform.
Here is a thread with an example on how to geocode Sentinel-3 data with rioxarray (it's a bit complicated).
...
- 443
1
vote
Georeference Sentinel-3 Data with irregular grid
We found that the best way is by using GDAL VRTs. It is still a pain, but... You basically extract the lat and lon rasters from geolocation.nc to e.g. VRTs:
gdal.Translate("lat.vrt", 'NETCDF:...
- 3,352
1
vote
Accepted
Temperature using Sentinel 3 in Google Earth Engine
It is not possible to do this within GEE, as the only Sentinel-3 instrument available is the OLCI (as shown in your screenshot). There are several sensors onboard the Sentinel-3, and the instrument ...
1
vote
Retrieve image coordinates (X, Y) from geographic coordinates in NetCDF file using Numpy
From your question, you are using a swath dataset (i.e. not using a regular grid). If you were using a regular grid, you'd just calculate the pixel number from the e.g. corner coordinates. I think
...
- 3,352
1
vote
Extract Sentinel 3 data into raster in R?
In case people are still looking at this RE: "how to adequately choose nrow and ncol in the rasterize() function"
In order to set nrow and ncol for your "blank" raster 'r', you can ...
1
vote
Longitude/Latitude from NetCDF with (row,column)
# Imports
from netCDF4 import Dataset
# Define reading function
def slstr_read_nc(fdir):
"""
Read lon, lat SLSTR data
Args:
fdir = string with the path and ...
- 319
1
vote
Accepted
Sentinel 3 OLCI/SLSTR granule footprints shapefile?
You can use the search on the Sentinel-3 Pre-Operations Data Hub:
Of course you can use the API and/or OpenSeach to automate that.
e.g.
https://scihub.copernicus.eu/s3/search?q=footprint:"...
- 6,569
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