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Questions tagged [era5]

ERA5 is a new state-of-the-art gridded reanalysis product covering the period 1979 to the present and available through the Copernicus climate data store through a web interface or a python api. The dataset includes a wide range of climate variables, the most popular including hourly rainfall, 2 meter temperatures and sea surface temperature

ERA5 is a new state-of-the-art gridded reanalysis product covering the period 1979 to the present and available through the Copernicus climate data store through a web interface or a python api. The dataset includes a wide range of climate variables, the most popular including hourly rainfall, 2 meter temperatures and sea surface temperature

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How do I downsample a netcdf data using box averaging method

I have a 500 hPa vertical velocity dataset with grid size 1440x721 and I need to downsample it to a grid size of 144x72 using the box averaging method. How do I do that in Python? I had been using cdo remapbil to change gridsizes but that's not…
SxS
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Average length of runs selected from a rasterbrick in R

I am working with a rasterbrick "a" with thousands of layers, closer description is not necessary for my problem. I am using following function to create a rasterlayer of the total amount of runs of at least 5 days with values greater than 1 (one…
Adam Dragula
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Add new variable to data object in cds toolbox

I'd like to compute the daily climatology and standard deviation of a variable (in this case pressure on two levels). I'm able to do this, but currently can't create a single data object which I can download as a netcdf. My code currently outputs a…
Robbie Mallett
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Printing data as a 4 column table also error

I want to ask something. I'm trying to run the code shown below. But line 40, in time_dim, lat_dim, lon_dim = t2m.get_dims () I get the error ValueError: too many values to unpack (expected 3). How can I solve this. Can you help me please? My…
denis
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How to download ERA5 data for specific location via python?

I want to download ERA5 data for a specific location (for example: North: 34.15, West: -52.28). I don't have coordinates for all directions; north, east, west and south, only north and west. I am trying to download data via api on python. When I…
Hüsamettin Tayşi
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Using a criterion to analyze rasterstack in R

I got myself a rasterstack with following description: class : RasterStack dimensions : 221, 121, 26741, 14975 (nrow, ncol, ncell, nlayers) resolution : 0.25, 0.25 (x, y) extent : 14.875, 45.125, 24.875, 80.125 (xmin, xmax, ymin,…
Adam Dragula
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Subsetting a rasterbrick by months

I got myself a rasterbrick called y, which has got 14 975 time layers as its got values of daily mean geopotential heigth every day since 1.1.1979 till 31.12.2019 (14 975 days). The brick has following description: class : RasterBrick…
Adam Dragula
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Is there a way to minimize the number of unique combination?

Trying to request ERA5 data. The request is limited by size, and the system will auto reject any requests bigger than the limit. However, one wants to be as close to the request limit as possible as each request takes few hours to be processed by…
Nick
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Extract timeseries data from ERA5 - Google Earth Engine

I am trying to extract a time series of mean daily temperatures that intersect with a point feature from the ERA5 dataset in Google Earth Engine. For some rages of years (e.g., '1979' to'1980'), the output throws an 'Internal Server Error'. Other…
emmadavis
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Downloading ERA5-Land to get daily total precipitataion

I am trying to understand on what @Rainfall.NZ saying on this answer: https://stackoverflow.com/a/67258594 related to ERA5-Land Hourly precipitation and ERA5 Reanalysis Hourly precipitation are different. See…
user97103
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Unit of integrated vapor transport (IVT)

I am trying to calculate IVT from ERA5 data. But my values are not matching with other published papers. The values in the paper are in the range of 100-1000 but i am getting the values which are less than 1. I think i am making mistakes in the…
subhra sekhar maity
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Why different software and commands are producing different results in calculating daily mean from ERA5 hourly data?

Basically, this is a repost or follow-up from How to calculate daily average from ERA5 hourly netCDF data? I have four atmospheric variables, viz. dew point temperature, longwave radiation, shortwave radiation, and wind speed (calculated from u10…
Soumik Das
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MATLAB: How to calculate total precipitation per day using hourly data ? (netcdf)

I have hourly data from ECMWF ERA5 for each day in a specific year. I want to convert that data from hourly to daily. Copernicus has a Python code for this here…
Behzad
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