Questions tagged [climate]

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

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2
votes
1answer
438 views

Google Earth Engine - NASA/NEX Climate Data

I am working with the NASA/NEX-DCP30 downscaled climate data. Ideally, I would like to set a threshold for two bands - pr (precipitation) and tasmax (maximum temperature) and filter it to display ...
1
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1answer
4k views

Use of file with '.dat ' extension

I dowloaded the climate data from this site http://catalogue.ceda.ac.uk/uuid/3f8944800cc48e1cbc29a5ee12d8542d and they have the extension .dat . I'd like to import the information in QGIS as raster ...
7
votes
1answer
403 views

Interpolating Daily Values from Monthly Grids using QGIS?

I am currently performing a bioclimatic analysis using monthly averaged climate grids. One particular calculation, Growing Degree Days, relies on daily maximum/minimum temperature and a threshold ...
2
votes
1answer
169 views

Is elevation (height relative to sea level) constant, despite sea level rising?

Is a 10,000' peak still a 10,000' peak if sea levels have risen a foot? Is it a 9,999' peak now, or is elevation just a constant? Seems odd that a patch of land a few feet above "sea level" could sit ...
3
votes
1answer
60 views

Changing climate grid values by adding decimal point numbers

I have climate grids (based on climate data from 1961-1991) which I have converted from ascii to raster in ArcGis 10.2.2. The temperature is in degrees celsius. I want to alter the temperature values ...
1
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3answers
75 views

Current Global Climate Dataset

I am looking for gridded Current Global Climate Datasets (Mean Temperature and Precipitation) at 30 second resolution? Can anyone guide me to get it.?
1
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1answer
343 views

Selecting lines affected by sea level rise?

I'm doing a part for my master's thesis where I'm trying to find out which sites located near the coasts of Sweden that will be affected by sea level rise. I got a DEM with height data and have to ...
2
votes
1answer
85 views

Spatial resolution for Bioclim datasets

I am new in using Bioclim datasets. I want to model future spread of Prosopis juliflora using landsat 30m. I want to add other datasets like temperature, ppt, elevation, soil moisture, pH, etc. Any ...
1
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0answers
88 views

Global NetCDF datasets with station time series data?

I´m working on a web application which uses temperatur and precipitation data. Currently i´m using only globally interpolated, multidimensional rasterdata from terrestrial stations (queried with x,y,t)...
3
votes
3answers
411 views

Statistical Analysis of Climate Data

I am doing a study on how a changing climate is influencing the spread of an invasive species of moth. I have climate data in the netCDF format which I have made into both rasters and point ...
2
votes
1answer
977 views

What methodology is used to quantify global warming?

This article in the LA Times says: The first detailed global temperature measurements were recorded in 1880. Since then, nine of the 10 warmest years on record have occurred since 2002, according ...
2
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1answer
823 views

Programs/ languages to process netcdf files “fast”

I am using R to loop through thousands of NetCDF files (downscaled climate data), and while I am able to do it using R, the code is too slow. I am looking for a way to speed it up and to maintain ...
1
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0answers
88 views

Transforming climate text data to raster in ArcGIS Desktop?

I have climate data in text files with no header in the format below from Udel's climate program. Each row has a lat, lon, and a temperature for each month (14 columns total) from 1900-2010. I need ...
1
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4answers
300 views

Source for wind energy potential for India in GIS format

I am looking for wind energy data (they can be wind speed at any height or wind energy potential) for India in a GIS format. Like the data displayed the link below: http://www.arcgis.com/apps/...
3
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2answers
5k views

Acquiring global wind data?

Where can I acquire global wind (speed and direction) data? Preferably in some kind of GIS format and free of charge.
1
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0answers
817 views

Calculating Climate Suitable Days using netCDF4 and Python?

This is a follow up to Using netCDF4 Python climate algorithm? I’m relatively novice in using netCDF files, so I’m wondering if someone can check my logic on my process of delineating what has been ...
0
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1answer
1k views

How I can extract a subset of years from a NetCDF file (e.g. to use in cell statistics)?

I want to use 5 years of data from a netCDF with 10 years of data (monthly slices). I saw this tutorial video that mentions this, but I can't figure out how to select more than one time slice. http://...
1
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1answer
75 views

Climatic data sets

I did a bulk download of climatic data from http://neo.sci.gsfc.nasa.gov/ in png format so that I will extract my ROI(Africa). After the download I loaded them in Arcgis and discovered they are not ...
0
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2answers
348 views

Downloading climate data? [closed]

I just want somebody to help me with a link so that I can download global climatic data variables like temperature, precipitation, cloud cover etc
7
votes
1answer
735 views

Spatial interpolation of 30 weather stations to other areas

I have monthly (and sometimes daily) data on temperatures from about 30 Swedish weather stations in the mid-19th century that I want interpolate to the whole country. I'm using ArcGIS and Stata. For ...
2
votes
1answer
108 views

Global temperature maps

Does anyone please knows where to get global surface temperature maps, yearly? I need separate map for each year from 2002 to 2012 shows the average surface temperature over the globe, would be great ...
1
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0answers
215 views

IDL 7.1.2; How to plot negative correlation in Taylor diagram [closed]

I am working on a model's run performance evaluation, three runs of GFDL-CM2.0 and five runs of GFDL-CM2.1 are used for temperature and precipitation for the years 1979-2000. The objective is to ...
2
votes
2answers
498 views

Temperature data for Africa

Where can I find daily minimum / maximum temperature for Africa, possibly in a raster format?
0
votes
1answer
301 views

Sea level rise prediction by zip code in the U.S. coasts

I'm relatively new to GIS data and am working on a project on climate change. I can find online predictions of sea level rise by zip code in the U.S. East, West and Gulf Coasts (for example: http://...
2
votes
1answer
375 views

Using netCDF4 Python climate algorithm?

I have been working in Python with the Acaconda Python distribution to create code that accomplishes the following algorithm: I have multiple variable netCDF4 files [NCEP Reanalysis tmax(K), tmin(K), ...
2
votes
1answer
1k views

Kriging inside a PostGIS database?

I use a PostGIS database with temperature data. I want to use a spatial interpolation method but not the supported IDW method. I need to use kriging, but it is not part of the supported interpolation ...
5
votes
1answer
2k views

Calculating Topographic Exposure with ArcGIS Raster Calculator?

I need you help trying to calculate Topographic Exposure (TOPEX) on a DEM in ArcGIS. I am trying to figure out wind exposure on a DEM with 25m cells. There is a great blog post where someone explains ...
1
vote
1answer
121 views

Sources for long-term NDVI datasets with coverage to west Asia?

I'm in need for long-term NDVI dataset for my research in bio-climatology, looks like GLCF GIMMS are no longer available online, any suggestions/workarounds to get the data.
4
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3answers
1k views

Are there better climate data than Worldclim for Europe?

I am looking for the best available climate data in Europe. Worldclim seems to be the best source of information for global data, but I am wondering if there is a higher resolution (better than 1km ...
1
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0answers
115 views

Sources for meterological data with high resolution

I was running Maxent on an endemic species of andaman and nicobar.But the climate data I have from worlclim.org ( tile number 29 ) is not of high resolution and thus I can't see the distribution ...
0
votes
1answer
161 views

Precipitation or snow cover raster data for Scandinavia

I am looking for free precipitation or snow cover data in Scandinavia mountain during the winter 2011-2012. The WorldClim dataset is not enough acute. I would like 500 m scale at least. There is NASA'...
4
votes
1answer
582 views

Is co kriging appropriate for interpolation of three spatial co variates?

I want to estimate an interpolation model(s) for daily minimum temperature, daily maximum temperature and daily rainfall. I have samples of approximately the same size for all three variables at ...
2
votes
1answer
3k views

Exporting climatic tabular data stored in TIF file into CSV

I have a TIF file containing tabular climatic data, described here, which I am trying to export to spreadsheet / CSV format: http://www.helioclim.org/linke/linke_helioserve.html In summary, it is a ...
3
votes
2answers
2k views

Problems in making CLM files with DIVA-GIS

I am fairly new to GIS softwares and this will be my first post here. I'm working with DIVA-GIS and was redirected here. I hope this is the correct place. I am doing a research which involves ...
5
votes
3answers
587 views

Where can I find decadal climate and ocean data for Europe?

I would like to find 'decadal' climate and ocean data for Europe that I can download and use directly in ArcGIS? Specifically, I am looking for mean annual temperature, sea surface temperature, and ...
8
votes
5answers
388 views

Is there a climatic geo portal for every point in the world?

I'm looking for a geo portal or climate database that provides me with the daily climatic information like temperature, precipitation and humidity. Forecast data is not of my interest. I need ...
3
votes
4answers
2k views

climatic data from MODIS or other sources [closed]

I'm looking for climatic information in the form of raster like MODIS daily LST (Land Surface Temperature) data. I'm looking for other parameters like precipitation, humidity, air pressure and so on. ...
6
votes
1answer
6k views

Is there a simple interface from which I can extract average summer temperature and humidity for a list of latitude and longitudes?

I am interested in finding the summer average (either climatalogical mean or for a specific year) relative humidity and temperature for a set of globally distributed latitude and longitude coordinates....
8
votes
1answer
267 views

Getting monthly weather means for future climates?

I am trying to generate spatially downscaled (5-10 arcminutes) future climate maps indicating monthly mean min and max temp, and precip. Most people usually need to extrapolate monthly data into ...
1
vote
2answers
146 views

Looking for average temperature data for Afghanistan

Hey all I am looking for a average temperature data for Afghanistan monthly over a year, precipitation would work too. In a shapefile, if anyone has any or knows anywhere that I could access one ...
11
votes
4answers
7k views

How to interpolate temperature correctly?

I tried to interpolate the mean average annual temperature to produce a "realistic" surface. In QGIS I used Raster-Interpolation-Interpolation. Both methods TIN and IDW did not deliver a "realistic" ...
5
votes
2answers
698 views

Optimum grid/pixel size for interpolating rainfall and temperature

I have a set monthly rainfall and temperature data within an approximately 100 x 100 km study area. The sampling points are unevenly distributed within the study area. Based on a paper by Janis et. ...
7
votes
4answers
148 views

Identifying geographies that match certain climatic profiles through GIS

The long and short of this research is trying to find roads that lie within geographic areas that fit a given climatic profile. In this case, I need to find areas within the United States with ...
6
votes
3answers
1k views

Interpolation of Three Data Points

I have three location points with weather data. It's a 10-year composite of temperature values which means I only have three values for three locations for ten years. The distance between points is ...