Cryosphere > Arctic sea ice

Glossary ... for newbies and others

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DungeonMaster:
I realized that it may be difficult for our new readers to understand most of abbreviations used here. So I suggest making a glossary !

For more terms you can refer to NSIDC's Glossary. Or peruse the Global Cryosphere Watch Glossary (4141 entries from 26 sources; over 2200 are unique).

Please add terms and definitions below, I'll try to compile them in this first message (except the jokes). Please also provide links when you can.

An other Glossary is available for Antarctic here

ABW - Arctic bottom water

AMO - Atlantic Multidecadal Oscillation

AO - Arctic Oscillation

AW - Atlantic water

ASI - Arctic Sea Ice - all the Ice floating in the Arctic Seas.

ASIB - Arctic Sea Ice Blog

ASIF - Arctic Sea Ice Forum

ASIG - Arctic Sea Ice Graphs page

AWP - Albedo Warming Potential

BOE - Blue ocean event

BS - Bering Strait (or when someone is talking nonsense) (or Blog Science)

CAA - Canadian Arctic Archipelago - Canadian islands in the North of America: Ellesmere, Victoria, Baffin and many others, except Greenland.

CAB - Central Arctic Basin

CAPIE - Cryosphere Today area per IJIS extent (crude melt pond and compactness measure)

CB - Century break, a drop of more than 100K (one hundred thousand) km2 in sea ice area or extent

CT - Cryosphere Today

DJF - December January February - winter (Meteorological calendar, northern hemisphere)

DLR - Downwelling Longwave (infra-red) Radiation

DMI - Danish Meteorological Institute

DRA - Data release area, the previously top secret US Navy submarine data showing measured thickness of sea ice. Release to scientists in 1992 by then Vice President of the US Al Gore.

DTR - Diurnal Temperature Range - the difference between daily max and min temperatures.

EAIS - East Antarctic Ice Sheet with two largest outlets

ECMWF (AKA Euro) - European Centre for Medium-Range Weather Forecasts

ENSO - El Nino Southern Oscillation

EPO - Eastern Pacific Oscillation

ESAS - East Siberian Arctic Shelf

ESS - East Siberian Sea

FDD - Freezing Degree Days. Sum of temps in C below freezing. Provides integrated intensity of cold.

FJL - Franz Josef Land, a group of islands to the east of Svalbard

FRIS - Filchner-Ronne Ice Shelf, Atlantic part of WAIS (Filchner the eastern outlet, Ronne the western by the peninsula (both having gently sloping submarine outlets)

FYI - First-year ice

GAC -  Great Arctic Cyclone

GFS - Global Forecast System (US weather forecast model)

GCM - General Circulation Model, or Global Climate Model. The sort of model used to make IPCC temperature projections.

GIS - Greenland Ice Sheet

HFO - Heavy fuel oil

ICESat - Ice Cloud and land Elevation Satellite. The precursor to CryoSat 2, used to validate PIOMAS.

IS - Ice stream

JIS - Jakobshavn ice stream

JJA - June July August - summer (Meteorological calendar, northern hemisphere)

LFO - Light fuel oil

MAM - March April May - spring (Meteorological calendar, northern hemisphere)

MIZ - Marginal Ice Zone

MSLP - Mean sea level pressure

MYI - Multi-year ice

NAO - North Atlantic Oscillation

NAVGEM -  Navy Global Environmental Model

NEW -  Northeast Water Polynya

NH - Northern Hemisphere.

NEGIS - North-east Greenland ice stream

NOW - North Water Polynya

NP - North Pole

NSR - Northern Sea Route

NWP - North West Passage

OLR - Outgoing Longwave (infra-red) Radiation

OMG - Oceans are Melting Greenland

OWFE - Open Water Formation Efficiency. A measure of the melt season thinning that leads to a percentage of open water in the Arctic ocean.

PAC -  Persistent Arctic Cyclone

PDO - Pacific Decadal Oscillation

PGAS - Prince Gustav Adolf Sea

PICT - PIOMAS volume per Cryosphere Today area (crude average thickness measure)

PIG - Pine Island Glacier, Blocking one specific steep and deep outlet of WAIS below sea level, and the other sensitive outlet nearby is Thwaites glacier.

PIJAMAS - PIOMAS volume per JAXA sea ice extent (crude average thickness measure)

PIOMAS - Pan Arctic Ice Ocean Modelling and Assimilation System.

PNA - Pacific North American pattern

PSC - Polar Science Center, University of Washington (PIOMAS)

PV - Polar Vortex

QBO - Quasi Biennial Oscillation

RILE - Rapid Ice Loss Event. An event where area or extent shows marked drops faster than the long term trend, these can take years to play out in the models and rarely end with a totally ice free Arctic.

RIS - Ross Ice Shelf, Pacific part of WAIS (with at least 3 gently sloping submarine outlets)

SAT - Surface air temperature

SFW - Stratospheric Final Warming

SH - Southern Hemisphere.

SIA - Sea ice area

SIC - Sea ice concentration

SIE - Sea ice extent

SIT - Sea ice thickness

SIV - Sea ice volume

SLP - Sea level pressure

SMB - Surface mass balance

SMOS - Soil Moisture and Ocean Salinity, ESA satellite

SOI - Southern Oscillation Index

SON - September October November - autumn (Meteorological calendar, northern hemisphere)

SoO - Sea of Okhotsk

SST - Sea surface temperature

SSTa - Sea surface temperature anomaly

SW - ShortWave radiation - sunlight otherwise known as insolation.

SWE - Snow Water Equivalent

TDD - Thawing Degree Days.  Sum of temps in C above freezing. Provides integrated intensity of warmth.

THC - Thermohaline Circulation

TPV - Tropopause Polar Vortex

TPW - Total Precipitable Water

UKMO - United Kingdom Meteorological Office

WAA - Warm Air Advection

WACC - Warm Arctic, Cold Continents

WAIS - The whole West Antarctic Ice Sheet

WIPD - Whole ice pack detachment

ZIS - Zacharian ice stream

Neven:
I set it to sticky.  :)

Here are a few:

SIC - sea ice concentration

SIE - sea ice extent

SIA - sea ice area

SoO - Sea of Okhotsk

ESS - East Siberian Sea

CT - Cryosphere Today

CAPIE - Cryosphere Today area per IJIS extent (crude melt pond and compactness measure)

PICT - PIOMAS volume per Cryosphere Today area (crude average thickness measure)

AW - Atlantic water

BS - Bering Strait (or when someone is talking nonsense)

ASIB - Arctic Sea Ice Blog

ASIF - Arctic Sea Ice Forum

ASIG - Arctic Sea Ice Graphs page

Pmt111500:
The Antarctica Main Glaciers (or Ice Streams)

*FRIS - Filchner-Ronne Ice Shelf, Atlantic part of WAIS (Filchner the eastern outlet, Ronne the western by the peninsula (both having gently sloping submarine outlets)
*RIS - Ross Ice Shelf, Pacific part of WAIS (with at least 3 gently sloping submarine outlets)

The 'backdoors'(aka 'weak underbelly') to both of them (There's a gap in the Antarctic Mountains) are:
*PIG - Pine Island Glacier, Blocking one specific steep and deep outlet of WAIS below sea level, and the other sensitive outlet nearby is
*Thwaites glacier. These are also the most northern outlets of  the

*WAIS - The whole West Antarctic Ice Sheet

for 'completeness' sake...
*EAIS - East Antarctic Ice Sheet with two largest outlets
*Mertz Glacier (that shed the C-28 iceberg just 2010) and
*Lambert Glacier (to
*Amery Ice Shelf towards Indian Ocean)
and numerous minor ones (most sit firmly on rock.)

ChrisReynolds:
Both of these two are from papers - so unless you want me to link to papers I can't provide a general info link.

RILE - Rapid Ice Loss Event. An event where area or extent shows marked drops faster than the long term trend, these can take years to play out in the models and rarely end with a totally ice free Arctic.
OWFE - Open Water Formation Efficiency. A measure of the melt season thinning that leads to a percentage of open water in the Arctic ocean.

PIOMAS - Pan Arctic Ice Ocean Modelling and Assimilation System.
http://psc.apl.washington.edu/wordpress/research/projects/projections-of-an-ice-diminished-arctic-ocean/

ICESat - Ice Cloud and land Elevation Satellite. The precursor to CryoSat 2, used to validate PIOMAS.
http://en.wikipedia.org/wiki/ICESat

DRA - Data release area, the previously top secret US Navy submarine data showing measured thickness of sea ice. Release to scientists in 1992 by then Vice President of the US Al Gore.
http://nsidc.org/scicex/history.html

GCM - General Circulation Model, or Global Climate Model. The sort of model used to make IPCC temperature projections.
http://en.wikipedia.org/wiki/General_circulation_model


Seasons:
Meteorological calendar, northern hemisphere.
DJF - December January February - winter.
MAM - March April May - spring.
JJA - June July August - summer
SON - September October November - autumn.

NH - Northern Hemisphere.
SH - Southern Hemisphere.

FUBAR - the state of the arctic ice pack in recent years.  ;)

PS - there was a map of the Arctic people were recommending. Perhaps it would be an idea to include resources like that here. Or maybe we need a 'backgrounder' sticky post for newbies.

ChrisReynolds:
Atmospheric and Ocean Modes.

AO - Arctic Oscillation
http://en.wikipedia.org/wiki/Arctic_oscillation

NAO - North Atlantic Oscillation
http://en.wikipedia.org/wiki/North_Atlantic_oscillation

ENSO - El Nino Southern Oscillation
http://en.wikipedia.org/wiki/Southern_Oscillation_Index

PDO - Pacific Decadal Oscillation
http://en.wikipedia.org/wiki/Pacific_decadal_oscillation

PNA - Pacific North American pattern
http://en.wikipedia.org/wiki/Pacific%E2%80%93North_American_teleconnection_pattern

QBO - Quasi Biennial Oscillation
http://en.wikipedia.org/wiki/Quasi_biennial_oscillation

AMO - Atlantic Multi Decadal Oscillation
http://en.wikipedia.org/wiki/Atlantic_multidecadal_oscillation

some others

DTR - Diurnal Temperature Range - the difference between daily max and min temperatures.
http://en.wikipedia.org/wiki/Diurnal_temperature_range

OLR - Outgoing Longwave (infra-red) Radiation
http://en.wikipedia.org/wiki/Outgoing_longwave_radiation

DLR - Downwelling Longwave (infra-red) Radiation

SW - ShortWave radiation - sunlight otherwise known as insolation.

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