Re: Station data and Opendap

Hi Bob:


Bob Simons wrote:
> To John Caron,
>
> So the station and trajectory features of the java netcdf library are 
> coming on line. Is there now, or will there be, a way to get subsets of 
> the data (equivalent to the subsetting methods like 
> StationDatasetHelper.getStations(boundingBox, cancel) and 
> StationDatasetHelper.getStationObs(boundingBox, startTime, endTime, 
> cancel) via opendap?

we are currently investigating hooking opendap sequences (eg dapper) into the 
station dataset API. The answer is probably yes, for those opendap datasets 
that support lat/lon constraint expressions.


> And can you confirm that opendap for netcdf probably won't support 
> constraint expressions for these point dataset .nc files (which would be 
> another way to accomplish the same goal)?
>
> Is there, or will there be, any way to subset point dataset .nc files 
> via opendap (short of the client reading all of the data and subsetting 
> it)?

so now this is a server question, so i will answer in context of TDS. We will provide that functionality (for netcdf files we know how to read into a station/point/trajectory obs dataset) through a web service one way or another. _Probably_ also through opendap sequences, but its still an open question. We really want to provide just a subset of the functionality that sequences have. 

What needs do you specifically have?



> Sincerely,
>
> Bob Simons
> Satellite Data Product Manager
> Environmental Research Division
> NOAA Southwest Fisheries Science Center
> 1352 Lighthouse Ave
> Pacific Grove, CA 93950-2079
> (831)658-3205
> address@hidden
> <>< <>< <>< <>< <>< <>< <>< <>< <><