List of Acronyms

AMO — Atlantic Multi-decadal Oscillation
AR5 — refers to the Fifth Assessment Report of the IPCC
BSU — Boise State University
CMIP5 — fifth Coupled Model Intercomparison Project
ENSO — El Niño-Southern Oscillation
GCM — global climate model
GHG — greenhouse gas
GYA — Greater Yellowstone Area
GYC — Greater Yellowstone Coalition
HUC — Hydrologic Unit Code
IPCC — Intergovernmental Panel on Climate Change
MCA — Montana Climate Assessment
MSU — Montana State University
NOAA — National Aeronautic and Atmospheric Administration
NPS — National Park Service
NWS — National Weather Service
PDO — Pacific Decadal Oscillation
PDSI — Palmer Drought Severity Index
RCP — Representative Concentration Pathway
SNOTEL — snow telemetry
SNR — signal-to-noise ratio
SWE — snow water equivalent
USGS — United States Geological Survey
UW — University of Wyoming


Sprinkler irrigation on a potato field east of Ashton, Idaho. Photo courtesy of Brian Apple (Henry’s Fork Foundation).