Climate Change 2001: Synthesis Report

Annex C. Acronyms, Abbreviations, and Units

Acronyms and Abbreviations
AA	Assigned Amount
AAU	Assigned Amount Unit
AD	Anno Domini
AIJ	Activities Implemented Jointly
A-O	Atmosphere-Ocean
AO	Arctic Oscillation
AOGCM	Atmosphere-Ocean General Circulation Model
Bern-CC	Bern Carbon Cycle
BP	Before Present
C₂F₆	Perfluoroethane / Hexafluoroethane
C₃	Three-Carbon Compound
C₄	Four-Carbon Compound
CANZ	Canada, Australia, and New Zealand
CBA	Cost-Benefit Analysis
CCC(ma)	Canadian Centre for Climate (Modeling and Analysis) (Canada)
CCGT	Combined Cycle Gas Turbine
CDM	Clean Development Mechanism
CEA	Cost-Effectiveness Analysis
CER	Certified Emission Reduction
CF₄	Perfluoromethane / Tetrafluoromethane
CFC	Chlorofluorocarbon
CGCM	Coupled GCM from CCC(ma)
CGE	Computable General Equilibrium
CGIAR	Consultative Group on International Agricultural Research
CH₄	Methane
CHP	Combined Heat and Power
CMIP	Coupled Model Intercomparison Project
CO₂	Carbon Dioxide
COP	Conference of the Parties
DAF	Decision Analysis Framework
DES	Development, Equity, and Sustainability
DES GP	Guidance Paper on Development, Equity, and Sustainability
DHF	Dengue Haemorrhagic Fever
DMF	Decision Making Framework
DSS	Dengue Shock Syndrome
ECE	Economic Commission for Europe
EIT	Economy in Transition
ENSO	El Niño Southern Oscillation
ERU	Emissions Reduction Unit
ES	Executive Summary
ESCO	Energy Service Company
EST	Environmentally Sound Technology
FCCC	Framework Convention on Climate Change
FSU	Former Soviet Union
GCM	General Circulation Model
GDP	Gross Domestic Product
GFDL	Geophysical Fluid Dynamics Laboratory (USA)
GHG	Greenhouse Gas
GNP	Gross National Product
GP	Guidance Paper
GPP	Gross Primary Production
GWP	Global Warming Potential
H₂O	Water Vapor
HadCM	Hadley Centre Coupled Model
HFC	Hydrofluorocarbon
IAM	Integrated Assessment Model
ICSU	International Council of Scientific Unions
IEA	International Energy Agency
IET	International Emissions Trading
IGCC S	Integrated Gasification Combined Cycle or Supercritical
IPCC	Intergovernmental Panel on Climate Change
IPCC TP3	Technical Paper on Stabilization of Atmospheric Greehouse Gases: Physical, Biological, and Socio-Economic Implications
IPCC TP4	Technical Paper on Implications of Proposed CO₂ Emissions Limitations
ISAM	Integrated Science Assessment Model
JI	Joint Implementation
LCC	Land-Cover Change
LSG	Large-Scale Geostrophic Ocean Model
LUC	Land-Use Change
MAC	Marginal Abatement Cost
MOP	Meeting of the Parties
MSL	Mean Sea Level
MSU	Microwave Sounding Unit
N₂O	Nitrous Oxide
NAO	North Atlantic Oscillation
NBP	Net Biome Production
NEP	Net Ecosystem Production
NGOs	Non-Governmental Organization
NO_x	Nitrogen Oxides
NPP	Net Primary Production
NSI	National Systems of Innovation
O₂	Molecular Oxygen
O₃	Ozone
ODS	Ozone-Depleting Substance
OECD	Organisation for Economic Cooperation and Development
OPEC	Organization of Petroleum-Exporting Countries
OPYC	Ocean Isopycnal GCM
PFC	Perfluorocarbon
PMIP	Paleoclimate Model Intercomparison Project
PPM	Processes and Production Method
PPP	Purchasing Power Parity
R&D	Research and Development
RCM	Regional Climate Model
SAR	Second Assessment Report
SF₆	Sulfur Hexafluoride
SME	Small and Medium Sized Enterprise
SO₂	Sulfur Dioxide
SPM	Summary for Policymakers
SRAGA	Special Report on Aviation and the Global Atmosphere
SRES	Special Report on Emissions Scenarios
SRLULUCF	Special Report on Land Use, Land-Use Change, and Forestry
SRTT	Special Report on the Methodological and Technological Issues in Technology Transfer
SST	Sea Surface Temperature
TAR	Third Assessment Report
TCR	Transient Climate Response
THC	Thermohaline Circulation
TP	Technical Paper
TS	Technical Summary
TSI	Total Solar Irradiance
UNEP	United Nations Environment Programme
UNESCO	United Nations Education, Scientific and Cultural Organisation
UNFCCC	United Nations Framework Convention on Climate Change
UV	Ultraviolet
VA	Voluntary Agreement or Value-Added
VOC	Volatile Organic Compounds
WAIS	West Antarctic Ice Sheet
WGI TAR	Working Group I Contribution to the Third Assessment Report
WGII SAR	Working Group II Contribution to the Second Assessment Report
WGII TAR	Working Group II Contribution to the Third Assessment Report
WGIII TAR	Working Group III Contribution to the Third Assessment Report
WMO	World Meteorological Organization
WRE	Wigley, Richels, and Edmonds
WTA	Willingness to Accept
WTP	Willingness to Pay
WUE	Water-Use Efficiency

Units

SI (Systeme Internationale) Units

*Physical Quantity*	*Name of Unit*	*Symbol*
length	meter	m
mass	kilogram	kg
time	second	s
thermodynamic temperature	kelvin	K
amount of substance	mole	mol

*Fraction*	*Prefix*	*Symbol*	*Multiple*	*Prefix*	*Symbol*
10^-1	deci	d	10	deca	da
10^-2	centi	c	10²	hecto	h
10^-3	milli	m	10³	kilo	k
10^-6	micro	µ	10⁶	mega	M
10^-9	nano	n	10⁹	giga	G
10^-12	pico	p	10¹²	tera	T
10^-15	femto	t	10¹⁵	peta	P

Special Names and Symbols for Certain SI-Derived Units

*Physical Quantity*	*Name of SI Unit*	*Symbol for SI Unit*	*Definition of Unit*
force	newton	N	kg m s^-2
pressure	pascal	Pa	kg m^-1 s^-2 (=N m^-2)
energy	joule	J	kg m² s^-2
power	watt	W	kg m² s^-3 (=J s^-1)
frequency	hertz	Hz	s^-1 (cycles per second)

Decimal Fractions and Multiples of SI Units having Special Names

*Physical Quantity*	*Name of SI Unit*	*Symbol for SI Unit*	*Definition of Unit*
length	Ångstrom	Å	10^-10 m = 10^-8 cm
length	micron	µm	10^-6 m
area	hectare	ha	10⁴ m²
force	dyne	dyn	10^-5 N
pressure	bar	bar	10⁵ N m^-2 = 10⁵ Pa
pressure	millibar	mb	10² N m^-2 = 1 hPa
mass	tonne	t	10³ kg
mass	gram	g	10^-3 kg
column density	Dobson units	DU	2.687x10¹⁶ molecules cm^-2
streamfunction	Sverdrup	Sv	10⁶ m³ s^-1

Non-SI Units

°C		degree Celsius (0°C = 273 K approximately) Temperature differences are also given in °C (=K) rather than the more correct form of "Celsius degrees"
ppmv		parts per million (10⁶) by volume
ppbv		parts per billion (10⁹) by volume
pptv		parts per trillion (10¹²) by volume
yr		year
ky		thousands of years
bp		before present

Other reports in this collection

IPCC Homepage