CSNE: Climate Assessments for New England

 

Methodological Details: Details regarding sources of meteorological data and climate model output, and our analysis methodology, are detailed in the Appendix of the New Hampshire Climate Assessment Report. Briefly, historical trends were quantified using data from two high-quality meteorological data sets. Monthly temperature and precipitation observations for the time period 1895–2012 come from the U.S. Historical Climatology Network (USHCN). Daily temperature and precipitation observations are available for many more stations across New England from the Global Historical Climatology Network-Daily (GHCN-Daily), albeit for a shorter period of time.

Potential future changes in temperature and precipitation were derived using the asynchronous regional regression method to statistically downscale output from CMIP3 (Coupled Model Intercomparison Project – Phase 3) climate projections from four global climate models (CCSM3, PCM, GFDL CM2.1, HadCM3) using two different global emission scenarios from the 2007 IPCC report (A1fi [higher emissions] and B1 [lower emissions]). The statistical downscaling was calibrated using historical data derived from the GHCN-Daily meteorological stations and we statistically downscaled the global climate model output to the GHCN-Daily meteorological stations that were used in the calibration. 

Map Product Descriptions

Collection of graphs, tables, and maps that detail past and future climate change (1895 – 2099) for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]) for New England as a whole and for 10 sub-regions.

Climate Slides

Collection of graphs and tables that detail past and future climate change (1895 – 2099) for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]) for New England as a whole and for 10 sub-regions. Maps of meteorological station locations also incluced. MAP

 

  

Tables detailing projected change in 26 climate indicators over three 30 year time periods (2010-2039; 2040-2069; 2070-2099) for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]) compared to the historical period (1980-2009) for New England as a whole and for 10 sub-regions. Indicators include seasonal and annual minimum temperatures, maximum temperature, and precipitation; extreme temperature and precipitation events, growing season, and days with snow on the ground.

Climate Grids

Tables detailing projected change in 26 climate indicators over three 30 year time periods (2010-2039; 2040-2069; 2070-2099) for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]) compared to the historical period (1980-2009) for New England as a whole and for 10 sub-regions. Indicators include seasonal and annual minimum temperatures, maximum temperature, and precipitation; extreme temperature and precipitation events, growing season, and days with snow on the ground. MAP

 

Two-page summaries of past and future climate change (temperature, precipitation, snow, and ice) in an easy to digest format for New England as a whole and for 10 sub-regions.

Fact Sheets

Two-page summaries of past and future climate change (temperature, precipitation, snow and ice) in an easy-to-digest format for New England as a whole and for 10 sub-regions. MAP

 

 

  

 

Annualized data from 1960-2099 for 26 indicators of climate change for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]) for New England as a whole and for 10 sub-regions.

Data

Annualized data from 1960-2099 for 26 indicators of climate change for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]) for New England as a whole and for 10 sub-regions. MAP

 

  

 

   

Detailed climate assessment reports for southern New Hampshire and northern New Hampshire.  The reports provide: 1) details regarding sources of meteorological data and climate model output, and our analysis methodology; 2) interpretation of the trends in climate; and 3) a discussion of how communities can respond to climate change.

Reports

Detailed climate assessment reports for southern New Hampshire and northern New Hampshire. The reports provide: 1) details regarding sources of meteorological data and climate model output, and our analysis methodology; 2) interpretation of the trends in climate; and 3) a discussion of how communities can respond to climate change. 

 

 

   

Maps of New England depicting region-wide change in 26 climate indicators for current conditions and by the end of the century (2070-2099) for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]).

New England Climate Indicator Maps

Maps of New England depicting region-wide change in 26 climate indicators for current conditions and by the end of the century (2070-2099) for two different global greenhouse gas emission scenarios (high [A1fi] and low [B1]).