For the downscaling, GCM data is taken from the historical (1950-2005) and future RCP4.5/RCP8.5 (2006-2100) daily outputs of several available CMIP5 models. Though over 40 models participated in CMIP5, only 20 of these models had daily outputs for all of the variables we are interested in for this downscaling project (i.e. minimum/maximum temperature,precipitation, wind, humidity, solar radiation).
The 20 models used for MACA downscaling are:
|Model Name||Model Country||Model Agency||Atmosphere Resolution(Lon x Lat)||Ensemble Used|
|bcc-csm1-1||China||Beijing Climate Center, China Meteorological Administration||2.8 deg x 2.8 deg||r1i1p1|
|bcc-csm1-1-m||China||Beijing Climate Center, China Meteorological Administration||1.12 deg x 1.12 deg||r1i1p1|
|BNU-ESM||China||College of Global Change and Earth System Science, Beijing Normal University, China||2.8 deg x 2.8 deg||r1i1p1|
|CanESM2||Canada||Canadian Centre for Climate Modeling and Analysis||2.8 deg x 2.8 deg||r1i1p1|
|CCSM4||USA||National Center of Atmospheric Research, USA||1.25 deg x 0.94 deg||r6i1p1|
|CNRM-CM5||France||National Centre of Meteorological Research, France||1.4 deg x 1.4 deg||r1i1p1|
|CSIRO-Mk3-6-0||Australia||Commonwealth Scientific and Industrial Research Organization/Queensland Climate Change Centre of Excellence, Australia||1.8 deg x 1.8 deg||r1i1p1|
|GFDL-ESM2M||USA||NOAA Geophysical Fluid Dynamics Laboratory, USA||2.5 deg x 2.0 deg||r1i1p1|
|GFDL-ESM2G||USA||NOAA Geophysical Fluid Dynamics Laboratory, USA||2.5 deg x 2.0 deg||r1i1p1|
|HadGEM2-ES||United Kingdom||Met Office Hadley Center, UK||1.88 deg x 1.25 deg||r1i1p1|
|HadGEM2-CC||United Kingdom||Met Office Hadley Center, UK||1.88 deg x 1.25 deg||r1i1p1|
|inmcm4||Russia||Institute for Numerical Mathematics, Russia||2.0 deg x 1.5 deg||r1i1p1|
|IPSL-CM5A-LR||France||Institut Pierre Simon Laplace, France||3.75 deg x 1.8 deg||r1i1p1|
|IPSL-CM5A-MR||France||Institut Pierre Simon Laplace, France||2.5 deg x 1.25 deg||r1i1p1|
|IPSL-CM5B-LR||France||Institut Pierre Simon Laplace, France||2.75 deg x 1.8 deg||r1i1p1|
|MIROC5||Japan||Atmosphere and Ocean Research Institute (The University of Tokyo), National Institute for Environmental Studies,and Japan Agency for Marine-Earth Science and Technology||1.4 deg x 1.4 deg||r1i1p1|
|MIROC-ESM||Japan||Japan Agency for Marine-Earth Science and Technology, Atmosphere and Ocean Research Institute (The University of Tokyo), and National Institute for Environmental Studies||2.8 deg x 2.8 deg||r1i1p1|
|MIROC-ESM-CHEM||Japan||Japan Agency for Marine-Earth Science and Technology, Atmosphere and Ocean Research Institute (The University of Tokyo), and National Institute for Environmental Studies||2.8 deg x 2.8 deg||r1i1p1|
|MRI-CGCM3||Japan||Meteorological Research Institute, Japan||1.1 deg x 1.1 deg||r1i1p1|
|NorESM1-M||Norway||Norwegian Climate Center, Norway||2.5 deg x 1.9 deg||r1i1p1|
Only one ensemble run was downscaled for each model, even if some of the models had multiple ensemble runs.
We used ensemble r1i1p1 for all the models except CCSM4 for which we used r6i1p1.
As HadGEM2-ES/CC are both 360-day models, but 365-day outputs are needed for most impact analyses, we interpolated these to 365-day before downscaling them to create the models HadGEM2-ES365 and HadGEM2-CC365.
For CCSM4, the wind components uas/vas were taken from the variables ua/va at the lowest pressure level in which there was data. Data from ua/va are avaiable at pressure levels: 100,85,70,50,25,10,5,1 kPa.
CCSM4 and NorESM1-M did not have relative humidity available at daily timescales. Therefore the MACA data does not have relative humidity (i.e. rhsmin/rhsmax) for either of these models.
bcc-csm1-1 did not have daily data available for 12/31/2099 for the RCP8.5 scenario only. Therefore the MACA does not have data(i.e all missing values) for this day for any of the variables for RCP8.5.