11 votes
Accepted

Converting grid resolution from degrees to kilometers

Assuming spherical shape, Earth's circumference is about $40,000\mathrm{km}$. These are split into $360^\circ$, so one degree is a bit more than $100\mathrm{km}$. This is true for latitudes. For ...
Christoph's user avatar
  • 994
4 votes
Accepted

What determines the spatial resolution of a study?

It sounds to me like the reviewer is fixated on a 'rule' they encountered in grad school, but the rule ignores some real-world nuance (as rules do). Quick caveat: my answer isn't definitive, it's ...
Matt Hall's user avatar
  • 11k
2 votes

ERA-Interim how to select only grid-points over land area?

The simplest way is to download another variable in which data is only available over the ocean, such as Sea Surface Temperature (SST). You should be able to download it in the very same way you do ...
ouranos's user avatar
  • 617
2 votes

Calculate the number of model grid cells covering a specific country

Here is a simple 'back of the napkin' idea for Python: Get a shapefile of the borders and use Python to create a polygon of the borders. Use mpl_toolkits to convert the climate model to X and Y ...
BarocliniCplusplus's user avatar
2 votes
Accepted

Where can I find high-resolution, historic weather data for urban areas (like ERA5 but higher spatial resolution)?

I think the ERA5-Land dataset suits your purpose. See https://www.ecmwf.int/en/era5-land. As the website says, 'The data is a replay of the land component of the ERA5 climate reanalysis with a finer ...
Jorn's user avatar
  • 163
1 vote

Interpolating world data to a local grid in Python

As @gansub implicitly suggested, you may have a better outcome by defining the output grid as well. Check this very similar question: How to interpolate scattered data to a regular grid in Python? ...
EarlGrey's user avatar
  • 461
1 vote

ERA-Interim how to select only grid-points over land area?

The land-sea mask for ERA Interim is available here.
Basileios's user avatar
  • 407
1 vote

Creating regular grid for my data?

Yes, but it will not be a very good dataset. You will only be limited to the size of the dataset. You can use Python's griddata function. But of course, you will need to make your grid before using ...
BarocliniCplusplus's user avatar

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