I tried to query copernicus directly using python for GRD data:
from sentinelsat import SentinelAPI, read_geojson, geojson_to_wkt
from datetime import date
# connect to the API
api = SentinelAPI('my-user', 'my-pass', 'https://scihub.copernicus.eu/dhus')
footprint = geojson_to_wkt(read_geojson('/home/gideon/sample.geojson'))
# search by polygon, time, and Hub query keywords
products = api.query(footprint,
date = ('20190101', '20190130'),
platformname = 'Sentinel-1',
producttype='GRD',
orbitdirection='Descending',
polarisationmode='VH',
cloudcoverpercentage = (0, 20)
)
print(products)
The reply I keep getting is an open dictionary.
OrderedDict()
Seems, no products are available for this query.
Any ideas?
Tnx
Hi,
I don’t know where your footprint
is located exactly, but there is a chance that there is no HV
data for that area (looking at your layer parameter in your SentinelHub configuration). As noted in the Observation scenario page, HH-HV polarisation is used for the monitoring of polar environments, typically sea-ice zones. For example, there is no HV
data over Central Europe in January 2019, but there are several scenes over Svalbard. I double-checked using Scihub and the Qgis plugin worked with your configuration over Svalbard.
In your second post, you are querying the VH
band. I can find data for this band easily, as in this EOBrowser example. I don’t know why your sentinelsat
query doesn’t return anything, but I cannot comment on the tool, being unfamiliar with it.
Hope this helps,
Thanks,
Indeed changing to VH I was able to get data in south america where my footprint is.
Thank you !