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Questions tagged [thredds]

THREDDS is an acronym for Thematic Realtime Environmental Distributed Data Services. The goal of the project is developing middleware to bridge the gap between data providers and data users. The goal is to simplify the discovery and use of scientific data and to allow scientific publications and educational materials to reference scientific data.

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Loading data on Unidata Integrated Data Viewer (IDV) from a THREDDS catalog?

I am trying to load some data to IDV from a THREDDS server via the catalog, but I get error messages such as Server does not support Content-Length I can add netcdf data from my local folders, but could not get this one to work. It seems like I am…
ZZZ
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Is there a hardwired limit to the NcML/THREDDS values element?

Is there a limit to the size or number of entries that can be placed within the values NcML element? I'm attempting to get a set of NetCDF files without lon/lat variables - but with x/y variables - to be read as a featureCollection by adding NcML…
Steven Baum
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Best way for Excel users to access NetCDF files on a THREDDS Data Server?

I have seen the following example to access a netcdf file using excel. I was wondering if it possible to access a certain part of the data based on specific indices (e.g. a time series of a parameter at a certain point on a map from a 4D…
ZZZ
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Problem when using external SLD in CesiumJS' WebMapServiceProvider

I'm having trouble when trying to specify a custom SLD style to Cesium WebmapService provider. For a bit of context, here is the code for the provider I'm currently using : const provider = new Cesium.WebMapServiceImageryProvider({ url:…
Alain Laupin
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Error when trying to remotely access MERRA-2

I'm trying to get PM2.5 data from the public NASA data base. Specifically, I'm following all the steps from this guide. I also created the three files just as explained on this requirements website. Still, I'm getting an error message when I'm…
futur3boy
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UnicodeDecodeError when trying to load Daymet V4R1 data via python open_url

I am trying to download Daymet data via python, using the following jupyter notebook provided by the ORNL: https://github.com/ornldaac/daymet-python-opendap-xarray/blob/master/1_daymetv4_discovery_access_subsetting.ipynb Everything works fine until…
Marco
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missing variables in HRRR data accessing via THREDDS Data Server

I accessed hrrr data through thredds server as shown here. However, The two needed variables "Upward long-wave radiation" and "Downward short-wave radiation" are not contained in the accessing dataset. With accessing using AWS, these variables are…
Naj_m_Om
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Efficiently access small chunk of grid on OPeNDAP server with python xarray when grid is saved in a sparse format

I am trying to access gridrad data. This data is stored on an OPeNDAP server, with one URL/file for each timestamp (example). Normally xarray is great for accessing these OPeNDAP grids, because you can slice up the giant grid to get only the section…
hm8
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How do I determine which version of THREDDS Data Server I am using?

We are running THREDDS Data Server under Tomcat 7.0.76 and are trying to determine which version of TDS we are running. We're not seeing it in catalina.out or anywhere obvious in the config and were wondering if the version could be interrogated at…
PAUL MENA
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ncss query - polygon instead of lat long box

I'm curious if there is a way to query the NDFD or other layers in the thredds server with a customized polygon instead of a rectangular lat long box? Thanks! --Chris
Chris Ranck
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How to download and subset netCDF files from NCEI THREDDS server

I am trying to download and subset the files located here: https://www.ncei.noaa.gov/thredds-ocean/catalog/ncei/archive/data/0129374/daily/catalog.html, but I'm not sure if I'm doing something wrong or if there is something wrong with the link. This…
pbreach
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Running multiple queries on linked servers with sqlalchemy

There are ~150 linked servers and I have to run a query in each linked server. I have to run this as fast as I can. The way I'm doing today: def get(): p = Pool(20) stores_sales = p.starmap(function, parameters) p.close() def…
Matheus Epifanio
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Reading in netCDF data from THREDDS fails

I am trying to load in netcdf from a THREDDS server but experience an unrecognizable error after a certain timestep. def list_dates(start, end): num_days = (end - start).days return [start + dt.timedelta(days=x) for x in…
Eli Turasky
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Running several scripts in parallel bash scripts on remote machines

in the following bash script , we want to run in parallel several scripts on remote machines ssh $server_a /tmp/activate_nodes.bash & ssh $server_b /tmp/activate_services.bash & ssh $server_c /tmp/activate_components.bash & ssh $server_d …
jessica
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How to format netCDF datasets to be compatible with Thredds OGC services

I have a netcdf dataset produced from the NASA LIS model that i want to be able to show through WMS using a Thredds server. The specific dataset and thredds server can be found at https://tethys.byu.edu/thredds/catalog/testAll/anomaly/catalog.html…
Riley Hales
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