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2
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154
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How to extract OPeNDAP data for a single location in R?
I am trying to download vegetation index data for a single point location, and I want it to be automated in R so I can do this for multiple points in different runs. So I found the opendap.catalog ...
1
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1
answer
214
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In python xarray, how do I create and subset lazy variables without loading the whole dataarray?
I am trying to create a python function that opens a remote dataset (in a opendap server) using xarray and automatically creates new variables lazily. A use case would be to calculate magnitude and ...
1
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1
answer
116
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Writing an ncdf4 file to disk after accessing it through OPeNDAP using R?
I am accessing a ncdf file from a thredds server and subsetting using openDAP, however while I can open and access the file connection, I cannot seem to copy the entire *.nc file to my local disk. Is ...
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0
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172
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How to get data from NOMADS with javascript?
My goal is to get the daily wind data from nomads, so I set the grib filter 10m above the ground with and got the url, tried to fetch on js, the response was ok but with empty data, I tried also with ...
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0
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191
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OPeNDAP - subset lat and long using a shapefile
I want to open SST data from NOAA opendap, clip the region that I am interested in, load the variables of interest, do some summary stats, and then close the file. Because I want to do it for daily ...
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419
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Why can I not access ESGF data via OPeNDAP, despite my valid credentials?
I would like to access climate (CORDEX) data through ESGF's OPeNDAP service via Python (xarray looks like a great option).
This dataset is an example of one I cannot access: https://esg-dn1.nsc.liu.se/...
1
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1
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215
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Calculating the size (bytes) of subset large netCDF file from a THREDDS Data Server before reading the file using ncvar_get?
I'm using nc_open to get a DatasetNode from a THREDDS Data Server, and reading a subset of the data in ncvar_get by specifying start and count. Reproducible example below:
library(thredds)
library(...
1
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0
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96
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Matlab: Error while trying to extract data from a netCDF for a specific range
I want to read the variable "tref" for desired latitude and longitude (which I index), 24th M, 4th L, and all S from a NetCDF file:
filename = 'http://iridl.ldeo.columbia.edu/SOURCES/.Models/.NMME/....
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2
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192
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Why is January and most of February data missing from CDO API request
Using the Climate Data Online WebAPI, every request I make fails to return January data and most of February. Only February 28th (and 29th) will be present. I've tried breaking up the data into ...
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0
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317
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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 ...
2
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1
answer
904
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How to open/download MODIS data in XArray using OPeNDAP
I would like to access several MODIS products through OPeNDAP as an xarray.Dataset, for example the MOD13Q1 tiles found here. However I'm running into some problems, which I think are somehow related ...
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2
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2k
views
Integrating a custom function in Django
I would like to access and print metadata (attributes and values) served by an ERDDAP server, which is a variety of OPeNDAP, on my Django website.
so I prepared a simple example function called ...
1
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1
answer
2k
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Fastest way to slice and download hundreds of NetCDF files from THREDDS/OPeNDap server
I am working with NASA-NEX-GDDP CMIP6 data. I currently have working code that individually opens and slices each file, however it takes days to download one variable for all model outputs and ...
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1
answer
61
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Failed processing format-parameters; Python 'maskedarray' cannot be converted to a MySQL type
I'm still new to python linked to MySQL, and I'm getting a problem like below. are there any clues I should do? Here is my code:
import mysql.connector
from netCDF4 import Dataset
import numpy as np ...
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1
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1k
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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 ...