Questions tagged [climate]

For questions related to climate data or analysis, such as precipitation or temperature.

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"Geometry has too many edges" This is the which keeps on coming on GEE

I am trying to extract the data for the particular country using the shapefile for the province to get the daily precipitation data. But whenever I run the following code error displays: ...
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10 views

Importing .bil files into DIVA-GIS

I am attempting to prepare climate data for analysis in Maxent using this guide here: https://scan-all-bugs.org/wp-content/uploads/2016/08/WorldClim_to_MaxEnt_Tutorial.pdf However, I can't seem to get ...
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1 answer
11 views

Calculate seasonal precipitation and temperature from CRU TS 4.05 in ArcGIS Pro

The Goal: To calculate the average spring (Mar-Apr-May) and summer (Jun-Jul-Aug) precipitation and temperature for a series of specific, discrete locations. These points represent sites (I'm an ...
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2 votes
1 answer
42 views

Finding areas with at least 7-days/year of sub-zero temps over 30 years using ERA5 in Google Earth Engine

I'm looking to make a climate zone map in Google Earth Engine (GEE). One of the criteria I'm using is frost occurrence- which is defined by having at least 7 days per year with a minimum temperature ...
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0 answers
43 views

NaN values after masking NetCDF with an shapefile in Python

I want to mask a global NetCDF dataset (datacube) to Germany. before I have already spatially resized it with slice. It is the GLEAM dataset v3.5a variable evaporation. I will do some analysis in ...
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1 vote
0 answers
20 views

Climate prediction using Climate Change Agriculture and Food Security (CCAFS)- Climate Analogues

I would like to know which climate model I can use to predict future climate of a particular area and at the same time shows places with similar conditions at the present. CAFFS-Climate Analogue tool ...
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1 vote
0 answers
133 views

Extract data from NetCDF file with tripolar projection for lat & long coordinates

I have coordinates obtained from Google Maps (latitude and longitude). I also downloaded a number of NetCDF4 files for different years and months that contain sea surface temperature (SST) from the ...
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1 answer
80 views

Google Earth Engine ERA 5 Precipitation [closed]

I am generating the estimation of the ERA 5 climate dataset. I read all the information, but I have a question. I need the precipitation data for a town area in Germany. I chose the total ...
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0 answers
18 views

Missing Global Forecast System wind data in northern hemisphere

I'm trying to use GFS analysis wind speed data but when opening the GRIB2 file as a mesh layer in QGIS (both 3.16.16 and 3.22.3) much of the data for the northern hemisphere is missing. This problem ...
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0 answers
17 views

How to convert scattered point to polygon in ArcGIS (e.g. Climate Zone)

I am new to ArcGIS and trying to crate global climate zone shapefile, covering both oceans and terrestrials. As you can see in the attached pictures, the original data comes in form of point, for ...
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1 vote
1 answer
51 views

Extract daily area average value of ERA-5 minimum temperature of 30 years using GEE?

I'm struggling in finding a way to extract daily minimum temperatures for a particular month (at present for january) and a study area (an imported shapefile as chamoli), for a selected period of time ...
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1 answer
25 views

Google Earth Engine - only extract values for each point based on a corresponding date

I have a list of occurrence points that I am collecting data for. Each point was collected on a specific date, with little overlap among when each organism was detected (data file with dates and ...
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1 answer
49 views

Raster does not match the target extent and shape of another raster ArcGIS

I have future climate data in .nc format. I transferred them into multiband rasters so I can separate them using another tool and make some calculations. I faced one issue in one variable where it had ...
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1 answer
60 views

Using conditional statements on raster not working in R

I'm trying to do this thing where I'm classifying climate and R just seems to not like it when I do if/and functions I don't even know someone please help me So I created a new raster entitled "...
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1 vote
0 answers
59 views

GEE: How to calculate mean of specific images each year in image collection (NASA NEX-GDDP climate model)?

Google Earth Engine: I am trying to calculate some climatic projections for Ukraine from NASA NEX-GDDP data. This is the dataset I am using. I am using the min temperature ("tasmin") band. ...
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0 answers
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Creating one raster with paletted categories from a raster stack

Basically, I've stacked a few rasters in R, and I want to create a climate classification map. I have a stack of rasters that have temperature and precipitation information. I want to make one raster ...
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0 votes
1 answer
123 views

Converting units of m day-1 (ERA5) to mm (CRU)

I have downloaded 2 datasets, one from CRU (https://data.ceda.ac.uk/badc/cru/data/cru_ts/cru_ts_3.00/data) of cru_ts_3_00.1901.2006.pre.nc.gz and other is ERA5 data (https://cds.climate.copernicus.eu/...
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2 votes
1 answer
218 views

How to find the mean of a given variable in NetCDF regardless of latitude and longitude?

I have extracted temperature t2m data from a NetCDF file for certain regions, and now I would like to find the overall mean temperature per timestamp for the given regions. The dimension of the NetCDF ...
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  • 772
0 votes
2 answers
50 views

How do I perform mathematic operations on raster data in R?

I downloaded a lot of WorldClim data, but there are some things that I wish to calculate that aren't given by WorldClim, like biotemperature and the aridity index. Biotemperature is definied by adding ...
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-1 votes
1 answer
26 views

Downloading CRU TS 3.0 data with custom temporal range

I want to download CRU TS 3.0 data from year 1960-1990. However in the website https://catalogue.ceda.ac.uk/uuid/c9dd2107e0b7e8c7b6aca7c34980f679 the data is downloaded from 1901-2006. Is there anyway ...
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2 votes
1 answer
40 views

Finding the average value of a gradient in a certain region in QGIS

In one QGIS project, I have a few TIFFs. One is a black-to-white gradient map showing average precipitation. Each pixel has a value that signifies how much yearly precipitation it gets. I have another ...
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0 votes
2 answers
890 views

Extracting ERA5 daily temperature and precipitation for different points using Google Earth Engine

I'm struggling at finding a way to extract daily average temperatures and total precipitations for different points (an imported table as FeatureCollection), throughout a selected period of time (few ...
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1 vote
1 answer
625 views

Joining wind speed and wind direction using Google Earth Engine

I have successfully exported wind speed to a csv file, and am trying to add wind direction. I know my wind direction calculation works and I can see it when printing ERA5total. If I understand ...
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  • 85
0 votes
1 answer
181 views

Google Earth Engine: memory error when calculating monthly average precipitation for a small region using GLDAS data

I am trying to calculate the total monthly precipitation rate using the Rainf_f_tavg band of the GLDAS-2.1 image collection on Google Earth Engine (https://developers.google.com/earth-engine/datasets/...
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1 vote
1 answer
296 views

Can I access Worldclim 2.1 CMIP6 data in 30-second resolution?

I am trying to access the Worldclim 2.1 CMIP6 future climate data at 30-second resolution. The Worldclim website says 30-second data will be available by then end of March 2020. This is long overdue ...
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  • 165
1 vote
4 answers
1k views

Downloading CHIRPS data sets using R

I have this code right here # Load package heavyRain and RCurl library(heavyRain) library(RCurl) #Assigning url and destfile url <- "ftp://chg-ftpout.geog.ucsb.edu/pub/org/chg/products/...
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1 vote
1 answer
647 views

Convert CSV file to NetCDF file

I have a CSV file with climate data, latitude, and longitude coordinates. RH PREC TEMP WS lat lon 65.93 1.51 287.43 4.67 63.31 177.62 70.43 1.89 285.32 1.54 ...
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1 vote
1 answer
71 views

CF compliance - why are certain variables required if WKT defined?

I'm trying to make a NetCDF CF-compliant, where the crs variable uses a WKT string. I'm using this compliance checker, testing against CF 1.7. I'm getting errors that certain attributes should be ...
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1 vote
1 answer
101 views

Cropping NetCDF by NCO

I would like to crop my NetCDF file for a specific location using NCO. However, I am quite lost in the documentation. So far, I've tried this: ncks -v Precipitation_Flux -d lon,-18.751,-7.684314, -d ...
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2 votes
1 answer
164 views

How can the maximum temperature (tmmx) band in the TerraClimate GEE dataset be interpreted?

This question was already asked here. But there was no correct answer. link I'm using the precipitation, maximum temperature (tmmx) and soil moisture in the TerraClimate dataset in GEE. I cannot find ...
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1 vote
0 answers
27 views

Identification of cloudy days based on Net Radiation data

How can I identify that a particular day is cloudy or clear sky based on the daily time series of Net Radiation (calculated at FluxNet/AMERIFlux sites)? I read somewhere that clear sky radiation has ...
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  • 121
0 votes
1 answer
219 views

Calculating monthly averages from daily precipitation data

I have a raster brick for daily precipitation data and I need to convert it to monthly data, how would I go about doing this? Each layer is a day and there are 34698 days (i.e. too many to go through ...
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2 votes
0 answers
350 views

Spatial interpolation of climate data using latitude, longitude and elevation in r

I have downloaded E-OBS gridded daily climate data on 0.1-degree grid. For each grid point, I have longitude, latitude, elevation and climate data, i.e. precipitation sum / mean temperature. Now, I ...
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1 vote
0 answers
21 views

Download Daymet tileID grid?

I'm trying to download tiled Daymet climate data ([see here])1. One can automate this process using a shell script, but you need to know the tileIDs that you want. Is there a way to download the tile ...
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1 vote
1 answer
84 views

How to replace an ImageCollection stored as variable by an ImageCollection stored as Asset in a GEE script?

I'm trying to clip and export climate data (annual max) from one ImageCollection to an already existing table with (annual max) NDVI values and clip them with conflict points stored in ...
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  • 127
2 votes
1 answer
186 views

Reduce image collection to annual maximum in GEE

I want to control my NDVI trends with climate variables. Therefore I am using temperature, precipitation and soil moisture. But since my NDVI is in annual maximum I need to have the same format for ...
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  • 127
1 vote
0 answers
29 views

Create map of frost free days using Daymet data in ArcGIS

I stumbled on DAYMET today for creating graphs in R for frost free days at a given location. This was all using boiler plate code someone in my agency made where you just change lat/long; I'm an R and ...
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0 votes
1 answer
222 views

Why does extracting the values from climate data rasters to points take so much time in the Google Earth Engine (GEE)?

I have written a script in the Google Earth Engine to extract values from 5 images (all climate data) to a list of points which I have imported from a csv to a feature collection. In principle it ...
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0 votes
2 answers
1k views

Exporting ERA5 Image Collection data from Google Earth Engine

I'm trying to export the ERA5daily Image Collection data from Google Earth Engine using the GEE API in python. I need the Max Temp, Min Temp and Average Temp for the time between 1979 and 2016 (in the ...
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1 vote
1 answer
425 views

How many bands can single NetCDF file contain?

I am collecting some precipitation data (centimeters of precipitation per day) from the Gridmet dataset (http://www.climatologylab.org/gridmet.html). The data comes in a NetCDF format and there is a ...
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5 votes
0 answers
864 views

Rotate coordinates from climatic data in raster format (cordex-EU domain 11) to usual coordinate systems

I am trying to create a dataset that shows future climatic condition in Europe aggregates to NUT2 administration level in R. To do so, i work with cordex data (domain EU 11), that is coming ...
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0 votes
1 answer
76 views

Moving max using calc and movingFun on a stack of 12 rasters r

I have downloaded the netcdf files of climate water deficit (def) from TerraClimate, years 1981-2010. Each raster is a monthly def for my region of interest, that being entire India. I created a ...
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  • 780
2 votes
1 answer
185 views

Cannot extract data from raster in QGIS

I'm trying to extract climate variables in QGIS for sample points with a raster dataset. The raster comes from ClimateNA (https://adaptwest.databasin.org/pages/adaptwest-climatena) and is available as ...
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0 votes
1 answer
833 views

Calculating ERA5 2018 monthly 2mt temperature anomalies in Google Earth Engine

I am trying to calculate in Google Earth Engine using ERA5 the monthly 2mt temperature anomalies from January to December 2018 compared to the long-term reference period of 1981-2010. In other words, ...
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  • 11
0 votes
0 answers
162 views

Aggregate Willmott and Matsuura Temperature Climate Data on Country Level

I'm looking for monthly mean temperature data on the country-level since 1900, or at least 1950, with temperature weighted according to population density. The common database for the spatial ...
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0 votes
0 answers
105 views

Shift time in NetCDF files

I have a folder which contains (monthly) nc files from January 1980 to December 2015 with hourly data for different compounds (such as PM2.5, O3, NO2, NO, etc).The time is in UTC as follows: int ...
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0 votes
0 answers
122 views

Daily averages in local time from UTC

It has been almost 2 weeks since I started getting familiar with netCDF files and operators (NCO) and climate data operators (cdo) and I am not an experienced programmer. I have a folder which ...
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0 votes
0 answers
91 views

Automating Model Builder (ArcMap) for NetCDF Processing

I have a NetCDF with 30+ years of monthly data from which I want to find the climatological normal. Using the NetCDF tutorial I found through NOAA (https://www.esrl.noaa.gov/psd/data/gridded_help/...
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0 votes
1 answer
643 views

Performing trend analysis with R?

I have data of monthly temperature for 60 years. I want to analyze the trend for the monthly temperature in R. How do I construct R Code which would analyze monthly trend over the time series to ...
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  • 5
1 vote
1 answer
229 views

Opening .clim file with QGIS

I downloaded data from http://climate.geog.udel.edu/~climate/html_pages/download.html in order to retrieve temperature and precipitation data. What I actually want is mean temperature and ...
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