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Climate Glossary  (press Ctrl-F to search for a word)

(Also available in alphabetical order.)
 

WUWT
WattsUpWithThat.com (the top-rated science blog site on the Web, created by climatologist Anthony Watts).
Watts, Anthony
A leading "skeptical" climatologist, owner of the WUWT blog, and originator of the SurfaceStations.org project.
RC
RealClimate.org (the leading Climate Movement activist blog, with about 1/10 the readership of WUWT).
GW
Global Warming (a/k/a Climate Change).
AGW
Anthropogenic Global Warming (GW caused by people).
CAGW
Catastrophic Anthropogenic Global Warming (a/k/a the True Faith of the Climate Movement activists).
IPCC
United Nations Intergovernmental Panel on Climate Change (the leading Climate Movement institution).
AR5
IPCC 5th Assessment Report (2013-2014). It was preceded by AR4.
AR4
IPCC 4th Assessment Report (2007). It was preceded by the TAR & followed by AR5.
TAR
IPCC Third Assessment Report (2001). It was preceded by the SAR & followed by AR4.
SAR
IPCC Second Assessment Report (1996). It was preceded by the FAR & followed by the TAR.
FAR
IPCC First Assessment Report (1990). It was followed by the SAR in 1996.
NIPCC
Nongovernmental International Panel on Climate Change, producer of the "Climate Change Reconsidered" reports.
APOD
Astronomy Picture Of the Day (a/k/a APOTD).
NPR
Notoriously-leftist Public Radio.
GISS
NASA Goddard Institute for Space Studies, in New York City (oddly enough, handlers of U.S. surface temperature records).
JPL
NASA Jet Propulsion Lab, in Pasadena, CA.
NOAA
National Oceanic and Atmospheric Administration.
NCDC
NOAA National Climatic Data Center.
NSIDC
National Snow and Ice Data Center.
USHCN
NCDC United States Historical Climatology Network - keepers of U.S. surface station climate records.
SurfaceStations.org
A volunteer project led by climatologist Anthony Watts to analyze, station-by-station, the entire USHCN station network.
Stevenson screen
A louvered enclosure for meteorological instruments, such as thermometers.
Six's registering thermometer
A type of min-max thermometer, invented by James Six in 1780, and very widely used for over 200 years (often within Stevenson screens) to measure daily minimum and maximum temperatures.
PSMSL
Permanent Service for Mean Sea Level.
Hansen, James
A controversial elder leader of the Climate Movement, retired April 3, 2013 as director of the NYC office of NASA GISS.
ENSO
El Niño/La Niña-Southern Oscillation (a semi-oscillatory pattern to Southern and equatorial Pacific ocean temperatures, with a period of about 3-5 years, and global weather effects).
PDO
Pacific Decadal Oscillation (a longer-duration oscillatory pattern to Pacific weather, especially in the Northern Pacific, with a period of about 15-30 years).
AMO
Atlantic Multi-decadal Oscillation (a very long-duration oscillatory pattern to North Atlantic weather, with an estimated period of about 70 years).
TOB or TOBS
Time of OBServation (variations of which can bias temperature measurements, which is the excuse for some of the striking "adjustments" to old temperature records, which made the past colder and the present warmer, bolstering the apparent case for GW).
GCM
General Circulation Model, a large, complex computer program which attempts to simulate ("model") the Earth's climate.
MSL
Mean Sea-Level.
LMSL
Local Mean Sea-Level (MSL measured at a specific place), also sometimes called RSL (Relative Sea-Level).
GMSL
Global Mean Sea-Level (any of many varieties of average MSL).
SLR
Sea-Level Rise.
Eustatic SLR
Global Sea-Level Rise = GMSL Rise.
Isostatic
"due to changes in loading of the crust of the earth" (especially due to melting ice circa 10,000 years ago).
Subsidence
Sinking of the land, e.g., due to extraction of groundwater, oil, or natural gas.
WAG
Wild-Ass Guess; see also "proxy."
PGR
Post-Glacial Rebound, isostatic movement of the earth's crust due to the last major deglaciation (circa 10,000 years ago); it causes falling sea-levels in Scandinavia, around Hudson Bay, & elsewhere.
GIA
Glacial Isostatic Adjustment, a (rough!) calculated adjustment to SLR to account for PGR.
Peltier, Wm Richard
The University of Toronto professor who calculates GIA from computer models.
VM2
Peltier's most commonly-used model-derived GIA data set; also, the "earth model" used for it.
VM4
Peltier's alternative model-derived GIA data set; also, the "earth model" used for it.
ICE-5G
The "ice model" used by Peltier to calculate his GIA data sets.
Tide-station
A device for measuring coastal sea-level; also called a tide-gauge.
GLOSS
Global Sea-Level Observing System (a set of hundreds of tide-stations, some of which have been operating for over 200 years).
Daly, John
A leading Australian climate skeptic, now deceased.
Jones, Phil
An English leader of the Climate Movement, who infamously called the untimely death of John Daly "cheering news."
Climategate
A "data dump" by a still-anonymous whistle-blower, of climate-related emails, documents & computer code, which showed that leading Climate Movement scientists had been manipulating & withholding data, hiding evidence, and blackballing skeptics, to promote CAGW. (Phil Jones' email about the "cheering news" of John Daly's death was one of those released.)
UEA CRU
University of East Anglia's Climate Research Unit, source of the Climategate files.
RWP
Roman Warm Period, circa 250 B.C. to 400 A.D., when temperatures were probably about as warm as they are now.
MWP
Medieval Warm Period (a/k/a Medieval Climate Optimum), circa 900 to 1300 A.D., when temperatures were probably about as warm as they are now.
LIA
Little Ice Age, circa 1400-1800 A.D., when temperatures were much colder than they are now.
Paleoclimate
Climate data from long ago, before there were good measurements.
Proxies
Indirect methods of attempting to infer paleoclimate data from other things such as tree rings, sediment layers & isotope ratios; see also "WAG."
TSI
Total Solar Irradiance, a/k/a total solar radiation.
ERB
NASA Earth Radiation Budget satellite missions, measured TSI (among other things).
ACRIM
Active Cavity Radiometer Irradiance Monitor is a NASA satellite instrument which measures Total Solar Irradiance (TSI).
SORCE
NASA SOlar Radiation & Climate Experiment satellite mission. Measures TSI (among other things).
SOHO/VIRGO
European SOHO Variability of solar IRradiance and Gravity Oscillations satellite mission. Measures TSI (among other things).
Mann, Michael
A leading U.S. Climate Movement scientist, who, with coauthors Raymond Bradley & Malcolm Hughes, famously created a (since discredited) "hockey-stick" shaped graph of paleo-temperature data from tree-ring proxies, which attempted to erase the MWP & LIA from history.
Muller, Richard
A leading U.S. Climate Movement scientist, who was critical of Michael Mann after the Climategate revelations.
M&M
Steve McIntyre and Ross McKitrick, Canadian researchers who famously discredited Michael Mann's "hockey stick" with their 2003 paper.
Denier
What Climate Movement true believers call those who disagree with them (a scornful reference to Holocaust deniers).
SST
Sea Surface Temperature.
AMDAR
Aircraft Meteorological Data Relay (see NOAA's FAQ).
IR
Infrared light.
CO2 or CO2
Carbon dioxide, a colorless, odorless trace gas, the raw material for plant growth, the bubbles in soda pop, the stuff you exhale.
Carbon pollution
What Climate Movement activists call producing carbon dioxide (by burning things, cement manufacturing, exhaling, etc.) and methane.
CH4 or CH4
Methane, the main component of natural gas and flatulence. When burned, it oxidizes into CO2 and water. If released into the atmosphere, it oxidizes more slowly, with a half-life of about six to eight years.
GHG
Greenhouse Gas: any trace gas (such as CO2, CH4 or water vapor) which could help warm the Earth's surface by blocking IR emissions into space. (Note: the term is a misnomer, because that's not how greenhouses work.)