Hi Ecologgers, In a situation similar to Alannie's, I am currently trying to get fine scale resolution data for climatic variables, land cover and elevation for the Indian subcontinent. At this point, I have been using the data from Worldclim, which is at 1km scale.
In addition, I am having trouble getting these into R after I clip them in ArcGIS. I am getting this error saying: Coordinate ref: NA. I have tried most of the solutions uploaded online, but to no avail. Any help on both would be much appreciated! Vijay On Tue, Sep 15, 2015 at 9:27 AM, daniel haberman <[email protected]> wrote: > Hi Alannie, > > the CRU dataset has the monthly data you require at 0.5 degree resolution > with temporal coverage from 1901 - 2014 globally, however this will require > you to average the monthly temperature yourself which can be done using the > GDAL package in either R or Python, or manually in ArcGIS if you have the > time. > > http://www.cru.uea.ac.uk/cru/data/hrg/ > > Best, > > Daniel > > On Mon, Sep 14, 2015 at 2:51 PM, Richard Schuster < > [email protected]> wrote: > >> Hi Alannie, >> >> Depending on your GIS expertise you could use this: >> http://cfcg.forestry.ubc.ca/projects/climate-data/climatebcwna/#ClimateNA >> and create those raster layers for North America. >> >> Depending on the resolution you want you could e.g. create a 1km point >> grid over NA and use the locations and elevation (from a DEM like here: >> http://webmap.ornl.gov/ogcdown/dataset.jsp?ds_id=10003) of those points >> as inputs for the desktop version of the ClimateNA tool. Once you get what >> you want out of the tool you can create a rasters from those outputs. >> >> Cheers, >> Richard >> >> >> Am 14/09/2015 um 10:23 schrieb Alannie Grant: >> >>> Hi Ecologgers, >>> >>> I am searching for some raster data that is suitable for use in ESRI >>> ArcGIS, >>> similar to bioclim data (worldclim.org). >>> >>> I am looking for mean monthly temperature or mean maximum temperature (by >>> this I mean the average temperature for each month of the year, so there >>> would be 12 separate files). >>> >>> An ideal data set will be averaged across a range of years (something >>> like >>> 1950-2000) and would cover North America or the globe. >>> >>> I have been searching for quite some time for this data and would >>> appreciate >>> some suggestions. >>> >>> I have found a promising data set from the UNEP >>> (http://geodata.grid.unep.ch/results.php) "Average Monthly Maximum >>> Temperature," however this data is not projecting correctly and is >>> therefore >>> unusable. >>> >>> Thanks in advance! >>> >>> Alannie >>> >>> > -- Vijay Ramesh, Master of Arts Candidate in Conservation Biology, Columbia University Dept. of Ecology, Evolution & Environmental Biology 10th Floor, Schermerhorn Extension, 1200 Amsterdam Avenue, New York, NY 10027 Email: [email protected] Website: www.evolecol.weebly.com
