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Suggest to rename argument in senSearch

Open mcgregorian1 opened this issue 4 years ago • 0 comments

I noticed when trying to retrieve URLs from senSearch that the argument name "lonlat" and its description is misleading. I was searching for the point 97.65317 (lon), 24.15859 (lat), so in the "lonlat" argument I put it in this order. However, the function returned NULL saying there were no images, even though a manual search in Copernicus SciHub showed there was.

I tried switching the argument to lat, then lon, and the function worked.

Can I please suggest you rename the argument to be "latlon" and update the description?

Here is the code. First one does not work.

senSearch(
            username="****",
            password="*****", 
            verbose=TRUE, 
            platform="Sentinel-2", 
            product="S2MSI1C", 
            lonlat=c(97.65317, 24.15859), # c(lon, lat)
            startDate=as.Date("2015-01-01"), 
            endDate=as.Date("2018-12-17")
)

Adapting dates.
Adding platform name.
[1] "Adding query intersects"
Adding query intersects
Added product type.
https://scihub.copernicus.eu/dhus/search?q=beginposition:[2015-01-01T00:00:00.000Z%20TO%202018-12-17T23:59:59.999Z]%20AND%20platformname:Sentinel-2%20AND%20footprint:%22intersects(97.65317,%2024.15859)%22%20AND%20producttype:S2MSI1C&format=json&rows=100
Search Total result: 
There is no images in the response, check spatial and temporal arguments.
NULL

This one works.

senSearch(
            username="****",
            password="*****", 
            verbose=TRUE, 
            platform="Sentinel-2", 
            product="S2MSI1C", 
            lonlat=c(24.15859, 97.65317), # c(lat, lon)
            startDate=as.Date("2015-01-01"), 
            endDate=as.Date("2018-12-17")
)

Adapting dates.
Adding platform name.
[1] "Adding query intersects"
Adding query intersects
Added product type.
https://scihub.copernicus.eu/dhus/search?q=beginposition:[2015-01-01T00:00:00.000Z%20TO%202018-12-17T23:59:59.999Z]%20AND%20platformname:Sentinel-2%20AND%20footprint:%22intersects(24.15859,%2097.65317)%22%20AND%20producttype:S2MSI1C&format=json&rows=100
Search Total result: 121
Image result 1 Name:S2A_MSIL1C_20150815T041056_N0204_R047_T47QLG_20150815T041524
Image result 1 Url:https://scihub.copernicus.eu/dhus/odata/v1/Products('b3fc9f4e-f857-4f65-abcd-af74551b7c50')/$value
...
...

mcgregorian1 avatar Mar 25 '21 18:03 mcgregorian1