Downscaled Alaskan Climate Data (CCSM)

The dataset in this record is the output of the CCSM4 (Community Climate System Model version 4). Please see the collection reference below for outputs from the other models described here.

These data are the
outputs of three general circulation climate models (GCMs), CCSM4, MRI-CGCM3,
and IPSL-CM5A-LR for the period 1950-2100. Runs of each
GCM were carried out as part of the fifth phase of the Coupled Model
Intercomparison Project. Future runs were forced with the RCP 8.5 emissions
scenario. They were downscaled to
a one km spatial resolution using a quantile matching approach. The three GCMs were
chosen because they were shown to recreate climate well in Alaska during the
last few decades and because they span the range of potential conditions during
the 21st century as projected by all climate models included in the
IPCC AR5. Variables include daily minimum and maximum Temperature (°C), daily
sum of precipitation (mm), daily sum of shortwave radiation (Mj m-2),
and mean VPD (kPa).

This dataset includes the following files. The gridded netCDFs are provided as compressed .tar.gz files. Extensive metadata is embedded within each netCDF.

CCSM4-hist-prcp.tar.gz : Daily precipitation (mm) for
1950-2005 from the CCSM4 GCM.

CCSM4-future-prcp.tar.gz : Daily precipitation (mm) for
2006-2100 from the CCSM4 GCM.
CCSM4-hist-srad.tar.gz : Daily shortwave radiation (mJ m-2)
for 1950-2005 from the CCSM4 GCM.

CCSM4-future-srad.tar.gz : Daily shortwave solar radiation (mJ
m-2) for 2006-2100 from the CCSM4 GCM.
CCSM4-hist-tmax.tar.gz : Daily maximum temperature (deg C)
for 1950-2005 from the CCSM4 GCM.

CCSM4-future-tmax.tar.gz : Daily maximum temperature (deg
C)for 2006-2100 from the CCSM4 GCM.
CCSM4-hist-tmin.tar.gz : Daily minimum temperature (deg C)
for 1950-2005 from the CCSM4 GCM.

CCSM4-future-tmin.tar.gz : Daily minimum temperature (deg
C)for 2006-2100 from the CCSM4 GCM.
CCSM4-hist-vap.tar.gz : Daily vapor pressure (kPa) for
1950-2005 from the CCSM4 GCM.

CCSM4-future-vap.tar.gz : Daily vapor pressure (kPa) for
2006-2100 from the CCSM4 GCM.