IPCC model projections of daily temperature and precipitation for hydrologic units of the Hudson/Mohawk Basin

Metadata

Dennis P. Swaney, Bongghi HongDept of Ecology and Evolutionary Biology

Corson HallCornell UniversityIthaca, NY 14853

February 14, 2018

1

Climate data collection and synthesis

We have downloaded daily CMIP5 projections of the 5th IPCC climate project precipitation and temperature, covering both the historic (1950-1999) and projected (to 2100) periods for ~12 km x ~12 km grid cells intersecting the Hudson/Mohawk basin These climate projections are averaged over the grid cells in each of the Hudson/Mohawk hydrologic unit regions (Figure 1). Daily data (temperature and precipitation) from all RCPs generated by available models (Table 1) have been downloaded, area-weighted for each hydrologic unit, and reformatted for use with the ReNuMa watershed model. The data are available online, together with other project-related information at http://www.eeb.cornell.edu/howarth/web/HudsonRiverBasinProjects_home.html.

Downscaled IPCC climate projection datasets

Data are organized in four folders by RCP:RCP2.6 (http://www.eeb.cornell.edu/howarth/web/HudsonDataDwnlds/rcp26temp_and_precip/RCP26.htm)RCP4.5 (http://www.eeb.cornell.edu/howarth/web/HudsonDataDwnlds/rcp45temp_and_precip/RCP45.htm)RCP6.0 (http://www.eeb.cornell.edu/howarth/web/HudsonDataDwnlds/rcp60temp_and_precip/RCP60.htm)RCP 8.5 (http://www.eeb.cornell.edu/howarth/web/HudsonDataDwnlds/rcp85temp_and_precip/RCP85.htm)

Each folder contains excel files containing daily data obtained from an individual model run for the entire daily record, 1/1/1950- 12/31/2099. (Some models generated multiple runs; see table 1).Data are arranged in columns with a single header row, with daily data appearing in consecutive rows. The column format is as follows:Year Month Day prcp_1 tmp_1 td_1 prcp_2 tmp_2 td_2 … … prcp_11 tmp_11 td_11

Where:Year = year number, 1950-2099Month = calendar month number, 1-12Day = day of month (<=31)Prcp_i, i=1-11 is the daily projected precipitation (mm) for huc iTmp_i, i=1-11 is the daily projected average temperature (°C) for huc iTd_i, i=1-11 is the daily projected temperature range (maximum-minimum, °C) for huc i

Hydrologic units are numbered as follows:Sequence HU name HU code1 Upper Hudson 020200012 Sacandaga 020200023 Hudson/Hoosic 020200034 Mohawk 020200045 Schoharie 020200056 Middle Hudson 020200067 Rondout/Wallkill 020200078 Hudson-Wappinger 020200089 Lower Hudson 02030101

2

10 Bronx 0203010211 Hackensack/Passaic 02030103

Figures

Figure 1. Hudson/Mohawk basin, including USGS HUC8 hydrologic unit subbasins (red outline) and IPCC climate model grid cells (blue outline). Hudson basin region counties are outlined in black.

3

Figure 2. Representative Concentration Pathways (RCPs) are four greenhouse gas concentration trajectories adopted by the International Panel on Climate Change (IPCC) for its fifth Assessment Report (AR5) in 2014. They are named after their radiative forcing values in the year 2100 relative to pre-industrial values (+2.6, +4.5, +6.0, and +8.5 W/m2, respectively). (https://en.wikipedia.org/wike/Representative_Concentration_Pathways)

4

Table 1. Modelling groups providing daily output for one or more RCPs. Each of the 20 models for which daily climate projections are run one or more times (which differ according to different initial conditions, etc) for each of the four RCPs analyzed. Parenthetical values indicate number of runs available for each RCP. Source: http://cmip-pcmdi.llnl.gov/cmip5/docs/CMIP5_modeling_groups.docx

Modeling Center (or Group) Institute ID Model Name Available RCPsCommonwealth Scientific and Industrial Research Organization (CSIRO) and Bureau of Meteorology (BOM), Australia

CSIRO-BOM ACCESS1.0

4.5(1),8.5(1)

Beijing Climate Center, China Meteorological Administration BCC BCC-CSM1.1 All(1)

Canadian Centre for Climate Modelling and Analysis CCCMA CanESM2 2.6(5), 4.5(5), 8.5(5)

University of Miami - RSMAS RSMAS CCSM4(RSMAS)

National Center for Atmospheric Research NCAR CCSM42.6(2), 4.5(2), 6.0(2), 8.5(2)

Community Earth System Model Contributors NSF-DOE-NCAR CESM1(BGC) 4.5(1),8.5(1)

Centre National de Recherches Météorologiques / Centre Européen de Recherche et Formation Avancée en Calcul Scientifique

CNRM-CERFACS CNRM-CM5

4.5(1),8.5(1)

Centre National de Recherches Météorologiques / Centre Européen de Recherche et Formation Avancée en Calcul ScientifiqueCommonwealth Scientific and Industrial Research Organization in collaboration with Queensland Climate Change Centre of ExcellenceEC-EARTH consortium

CNRM-CERFACS

CSIRO-QCCCE

EC-EARTH

CSIRO-Mk3.6.0

2.6(10), 4.5(10), 8.5(10)

NOAA Geophysical Fluid Dynamics LaboratoryNASA Goddard Institute for Space Studies

NOAA GFDL

NASA GISS

GFDL-CM3 2.6(1), 6.0(1), 8.5(1)

NOAA Geophysical Fluid Dynamics LaboratoryNASA Goddard Institute for Space StudiesInstitute for Numerical MathematicsInstitut Pierre-Simon Laplace

NOAA GFDL

NASA GISSINMIPSL

GFDL-ESM2G all(1)

GFDL-ESM2M all(1)

INM-CM4 4.5(1),8.5(1)

Institute for Numerical MathematicsInstitut Pierre-Simon LaplaceJapan Agency for Marine-Earth Science and Technology, Atmosphere and Ocean Research Institute (The University of Tokyo), and National Institute for Environmental Studies

INMIPSL

MIROC

IPSL-CM5A-LR 2.6(3), 4.5(4), 6.0(1), 8.5(4)

IPSL-CM5A-MR2.6(1), 4.5(1), 6.0(1),

8.5(1)

MIROC-ESM2.6(1), 4.5(1), 6.0(1), 8.5(1)

Japan Agency for Marine-Earth Science and Technology, Atmosphere and Ocean Research Institute (The University of Tokyo), and National Institute for Environmental StudiesAtmosphere and Ocean Research Institute (The University of Tokyo), National Institute for Environmental Studies, and Japan Agency for Marine-Earth Science and Technology

MIROCMIROC

MIROC-ESM-CHEM

2.6(1), 4.5(1), 6.0(1), 8.5(1)

MIROC52.6(3), 4.5(3), 6.0(1),

8.5(3)

Max-Planck-Institut für Meteorologie (Max Planck Institute for Meteorology) MPI-M MPI-ESM-LR 2.6(3), 4.5(3), 8.5(3)

Max-Planck-Institut für Meteorologie (Max Planck Institute MPI-M MPI-ESM-MR 2.6(1), 4.5(3), 8.5(3)

5

for Meteorology)Meteorological Research Institute MRI MRI-CGCM3

2.6(1), 4.5(1), 6.0(1), 8.5(1)

Norwegian Climate Centre NCC NorESM1-M 2.6(1), 4.5(1),6.0(1), 8.5(1)

Acknowledgements

We acknowledge the World Climate Research Programme's Working Group on Coupled Modelling, which is responsible for CMIP, and we thank the climate modeling groups (listed in Table 1) for producing and making available their model output. For CMIP the U.S. Department of Energy's Program for Climate Model Diagnosis and Intercomparison provides coordinating support and led development of software infrastructure in partnership with the Global Organization for Earth System Science Portals.

6