cfgrib | Python interface to map GRIB files | Dataset library
kandi X-RAY | cfgrib Summary
kandi X-RAY | cfgrib Summary
A Python interface to map GRIB files to the NetCDF Common Data Model following the CF Convention using ecCodes
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Top functions reviewed by kandi - BETA
- Write a dataset to a GRIB file
- Convert a DataArray to a Grib file
- Try to detect GRIB keys
- Returns a dictionary of key - value pairs for the regular expression
- Translates data into a dataset
- Translate the coordinate of a coordinate
- Convert data to target units
- Returns a list of names matching the given function
- Opens a GRIB dataset
- Merge multiple datasets together
- Opens a variable index file
- Open a file index
- Create a Dataset from a fieldset
- Create a Dataset from a given index
- Compute the list of index keys
- Build dataset components
- Returns a dictionary of all variables
- Return a xr Variable object
- Open a dataset
- Get the encoding of the dataset
- Open a GRIB file
- Translate all coordinate names in coord_model
- Parse the version from the version file
cfgrib Key Features
cfgrib Examples and Code Snippets
Community Discussions
Trending Discussions on cfgrib
QUESTION
I have a grib file containing monthly precipitation and temperature from 1989 to 2018 (extracted from ERA5-Land).
I need to have those data in a dataset format with 6 column : longitude, latitude, ID of the cell/point in the grib file, date, temperature and precipitation.
I first imported the file using cfgrib. Here is what contains the xdata list after importation:
...ANSWER
Answered 2021-Jun-16 at 02:36Here is the answer after a bit of trial and error (only putting the result for tp variable but it's similar for t2m)
QUESTION
Can the crgrib engine handle reading remote files? It doesn't look like it according to Martin Durant's comment (https://github.com/ecmwf/cfgrib/issues/198#issuecomment-772852412)
There is a smallish grib file hosted on s3: https://mf-nwp-models.s3.amazonaws.com/index.html#arpege-world/v2/2021-02-16/00/UGRD/10m/ (note don't click on a file as it'll download).
When I try to reading it use sf3s
I get
ANSWER
Answered 2021-Feb-16 at 18:44QUESTION
I'm new in python and I have a concurrent problem when using internal functions of importing libraries. The problem is that my code calculates different kinds of variables and in the last process they are saved into different files. But I have the same problem when reading and writing.
This is an example code that works because is linear:
...ANSWER
Answered 2021-Feb-10 at 07:57As I'm new in python I was unaware of the different kinds of threads that we can create, so in my example above, I was using the ThreadPool that can be locked by the GIL (Global Interpreter Lock), so to avoid it there is another kind of threads we can use, here an example:
QUESTION
I have accessed Anaconda Prompt for the environment that I will be working.
Once there, I have changed the directory to the place where I have the grib files that I will be working with, in order to install cfgrib, I have used the following command:
conda install -c conda-forge cfgrib
As the Python module depends on ECMWF ecCodes binary library, in the same Anaconda Prompt, I ran the following command:
conda install -c conda-forge eccodes
Then, opened the file in Spyder, and tried to run this simple script:
...ANSWER
Answered 2020-Oct-27 at 09:45As the error says, ECCODES_DEFINITION_PATH
was not set.
As I am using Anaconda on Windows 10, the path is the following
QUESTION
I'm wanting to extract data from grib2 files within a window of lat/long.
...ANSWER
Answered 2020-Apr-29 at 18:52It turns out that the error is not related to multithreading but is coming from attempting to do 2D indexing with xarray.
QUESTION
I'm fairly new to the xarray
library, and I am stuck in a what it seems a fairly straight-forward task. I have global climate data in a GRIB
file for different 30-km grids. The data looks like this:
ANSWER
Answered 2020-Jan-22 at 02:30One way might be to manually construct a pandas.MultiIndex
from the latitude and longitude variables, assign it as the coordinate for the values
dimension, and then unstack the Dataset:
QUESTION
When attempting to plot wind barbs using matplotlib on a cartopy map, I get a QhullError. I've never seen this error before and my code hasn't changed since I last used it. I've also made sure the packages are up to date and the grib2 file being used is valid by printing the xarray variables. Below is the code:
...ANSWER
Answered 2020-Jan-09 at 20:12It appears the solution (sorta) to this was to simply use a different projection than the LambertConformal projection I was using originally. Not exactly sure what was wrong so this is only a circumvention to the original problem.
QUESTION
I am new to python, and trying to run Metpy tutorial with xarray, before its ok but after I update xarray to newer version then it show an error
I have tried to create another environment in anaconda prompt, and install every module including metpy (xarray is already included)
...ANSWER
Answered 2019-Jul-05 at 13:06Go to C:\ProgramData\Anaconda3\envs\cobaxarray\lib\site-packages\metpy\xarray.py
find the line from xarray.core.accessors import DatetimeAccessor
change it to from xarray.core.accessor_dt import DatetimeAccessor
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install cfgrib
You can use cfgrib like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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