Terms A

ADEOS

atmospheric demand

absorption coefficient

ARFOR

aftersummer

afterheat

All-hallown summer

AABW

Azores high

Azores Current

azimuth scale

azimuth resolution

azimuth

ayalas

axisymmetric turbulence

axisymmetric flow

axisymmetric

axis of dilatation

axis of depression

axis of contraction

axis of anticyclone

axial symmetry

AXBT

avulsion

avre

Avogadro's number

Avogadro's law

aviation weather observation

aviation weather forecast

aviation observation

aviation forecast

AVHRR

average power

average velocity

average over the spectrum

average limit of ice

average net balance

average interstitial velocity

average drag coefficient

avalanche wind

available water

avalanche

avalaison

available storage capacity

available solar radiation

available soil moisture

available potential energy

available head

auxiliary thermometer

auxiliary ship

auvergnasse

autumnal

autumn ice

autoregressive series

autoregressive process

automatic weather station

automatic tide gauge

automatic station

automatic picture transmission

automatic gain control

automatic evaporation station

automatic data processing

automated search

autogenous electrification

autocorrelation

autoconversion

autoconvective lapse rate

autoconvection

autobarotropy

autobarotropic

autan

austru

Australasian Mediterranean Water

austausch coefficients

austausch

auroral zone

auroral rays

auroral corona

auroral curtains

auroral bands

auroral arc

aurora polaris

aurora borealis

aurora australis

aureole

aufeis

audibility zone

attenuation

attachment

attached thermometer

ATS

atomic number

atmospherics

ATN

atmospheric wave

atmospheric water budget

atmospheric transport

atmospheric tide

atmospheric thermodynamics

atmospheric sounding

atmospheric shell

atmospheric science

atmospheric region

atmospheric refraction

atmospheric radiation budget

atmospheric pressure

atmospheric radiation

atmospheric polarization

atmospheric ozone

atmospheric optics

atmospheric oscillation

atmospheric model

atmospheric layer

atmospheric ionization

atmospheric electricity

atmospheric electric field

atmospheric dynamics

atmospheric dust

Atmospheric ducting

atmospheric disturbance

atmospheric correction

atmospheric circulation model

atmospheric chemistry

atmospheric attenuation

atmosphere–ocean interaction

atmosphere–mixed layer ocean model

atmosphere

atmometry

atmoradiograph

atmometer

atmidometry

Atlantic Water

Athos fall wind

asynoptic observation

asynchronous communication

asymptotic expansion

asymmetry factor

astronomical twilight

astronomical refraction

Assmann psychrometer

aspirator

aspre

aspiration psychrometer

aspiration meteorograph

aspiration condenser

aspirated thermometer

aspect ratio

aspect

ash devils

ash

ASDAR

ascending node

ascendent

artificial recharge

artificial precipitation

artificial intelligence

artificial ice nucleus

artificial control

artificial climate

artesian well

artesian basin

artesian aquifer

ARS

arroyo

Arrhenius equation

aromatic hydrocarbons

aridity index

armouring

ARMET

arithmetic mean

aridity coefficient

aridity

arid-zone hydrology

arid zone

arheic

Argos

argon

ARFOT

areal reduction factor

areal precipitation

area–elevation curve

area of influence

area forecast

area average

arcus

arcticization

arctic-alpine

Arctic Zone

arctic tree line

Arctic Surface Water

arctic sea smoke

arctic stratospheric vortex

Arctic Polar Front

arctic pack

arctic mist

Arctic Intermediate Water

arctic high

arctic haze

arctic front

arctic desert

Arctic Circle

Arctic Bottom Water

arctic air

arcs of Lowitz

Archimedes's principle

arc cloud

Arakawa Jacobian

Arago point

Arago distance

aracaty

aquitard

aquifuge

aquifer test

aquifer system

aquifer

aquiclude

APT

approach-light contact height

approach visibility

approach velocity

approach channel

applied meteorology

applied hydrology

applied climatology

Applications Technology Satellite

apparent stress

apparent solar day

apparent horizon

apparent groundwater velocity

apparent gravity

apparent force

apogee

apogean winds

apogean tide

apocenter

apob

Apheliotes

aphelion

aperwind

aperture

aperiodic

apaapaa

Ap index

AP

anvil cloud

antitwilight arch

antitrades

antipleion

antisolar point

antiproton

antilog

Antilles Current

antihail rocket

anticyclonic circulation

anticyclonic shear

anticyclonic rotation

anticyclonic

anticyclone

anticyclolysis

anticyclogenesis

anticrepuscular rays

anti-sea breeze

anti-icing

anthropogenic heat

anthropogenic

anthropogenic climate change

anthropogenic emissions

anthropoclimatology

anthelion

anthelic arcs

antenna temperature

antenna pattern

antenna limit

antenna gain

antenna feed

antenna

antecedent soil moisture

antecedent precipitation index

antecedent

Antarctic Zone

Antarctic Surface Water

antarctic stratospheric vortex

antarctic sea smoke

antarctic ozone hole

Antarctic Intermediate Water

Antarctic Polar Front

Antarctic Ice Sheet

antarctic front

antarctic divergence

Antarctic Circumpolar Current

Antarctic Circle

Antarctic Bottom Water

antarctic anticyclone

antarctic air

anomaly correlation

anomalous refraction

anomalous propagation

anomalous

annual storage

annual series

annual runoff

annual range

annual minimum series

annual maximum series

annual flood series

annual flood

annual exceedance series

annual cycle

anniversary winds

anisotropy

anisotropic

anhyetism

angularity correction

angular-spreading factor

angular-momentum balance

angular wavenumber

angular velocity of the earth

angular velocity

angular spreading

angular resolution

angular momentum

angular drift

angstrom

Angola–Benguela front

Angola Current

angle of refraction

angle of reflection

angle of incidence

angle of arrival

angin

angel

aneroid capsule

aneroid barometer

aneroid barograph

aneroid

anemovane

anemoscope

anemometry

anemometer level

anemometer

anemoclinometer

anelastic approximation

anchor ice

anchor balloon

analyzed chart

analysis of variance

analysis

analogue

analogs

analog model

analog method

analog climate model

analog

anallobaric

anafront

anaerobic condition

Anadyr Current

anabatic wind

anabatic

amplitude-modulated indicator

amplitude spectrum

amplitude modulation

amplitude

amphidrome

amount of precipitation

amorphous sky

amorphous frost

amorphous clouds

ammonium sulfate

ammonium nitrate

ammonium ion

ammonium chloride

ammonification

ammonia

ambiguity function

ambient temperature

ambient pressure

ambient air

aluminum oxide humidity element

altostratus

altocumulus

altitude

altithermal period

altimetry

altimeter-setting indicator

altimeter setting

altimeter equation

altimeter corrections

altimeter

altigraph

alti-electrograph

alternating unit tensor

alternate forecast

alternate airport

Alter shield

alpine tundra

alpine glacier

alpha ray

alpha particle

alpenglow

aloup de vent

along-valley winds

along-valley wind systems

along-slope wind systems

aloegoe

almwind

Almeria–Oran front

almanac

alluvial aquifer

alluvial

allowed transitions

allohypsography

allobaric

allerheiligenwind

Allard's law

all-weather airport

all-sky photometer

alkynes

alkylperoxy radicals

alkenes

alkanes

alkalinity

Alisov's classification of climate

alimentation

alidade

aliasing

algorithm

Algerian Current

Alfvén wave

Alexander's dark band

Aleutian low

Aleutian Current

aldehydes

Alberta low

Alberta clipper

albedometer

albedo

Alaskan Stream

Alaska Current

alarm level

Aitken nucleus

Aitken dust counter

airways shelter

airway

airspeed

airshed model

airport forecast

airport elevation

airplane observation

airmass source region

airmass shower

airmass precipitation

airmass modification

airmass climatology

airmass classification

airmass analysis

airlight formula

airlight

airglow

airfield color code

AIREP

aircraft-to-satellite data relay

aircraft weather reconnaissance

aircraft turbulence

aircraft thermometry

aircraft sounding

aircraft report

aircraft observation

aircraft meteorological station

aircraft icing

aircraft ice accretion

aircraft electrification

aircraft ceiling

airborne weather radar

airborne particulates

airborne fraction

airborne expendable bathythermograph

air–sea interaction

air-line well

air-line sounding

air–fuel ratio

air–earth current

air–earth conduction current

air trap

air toxins

air temperature

air sampler

air report

air quality standards

air quality criteria

air pollution meteorology

air pollution episode

air pollution control

air pollution

air pollutants

air pocket

air meter

air mass

air line correction

air hoar

air drainage

air discharge

air current

air acoustic ranging sensor

Agulhas Current

agrometeorological forecasting

agroclimatic index

agro-met station

agricultural meteorology

agricultural meteorological station

agricultural drought

agricultural climatology

agonic line

agnostic chart

aggressive water

aggregation

agglomeration

ageostrophic wind

ageostrophic advection

age

afternoon effect

afterglow

African jet

African Easterly Wave

afghanets

Afer

aestivation

aestival

aerostatic balance

Aerospace Meteorology

aerosol optical depth

aeronomy

aeronautical meteorology

aeronautical meteorological station

aeronautical meteorological service

aeronautical climatology

aerometeorograph

aerology

aerological table

aerological station

aerological days

aerological analysis

aerologation

aerography

aerograph

aerodynamics

aerodynamically smooth surface

aerodynamically rough surface

aerodynamic resistance

aerodynamic force

aerodynamic balance

aerodynamic

aerodrome meteorological minima

aerobiology

AERO code

aerial perspective

aerial

aeration

aeolian tones

aeolian

AE

advisory area

advisory

advective-gravity flows

advective thunderstorm

advective region

advective model

advective change of temperature

advection frost

advection fog

advection

Advanced Very High Resolution Radiometer

Advanced TIROS-N

Advanced Earth Observing Satellite

Advanced Baseline Imager

adsorption isotherm

adsorption

adret

admissible concentration limit

adjustable cistern barometer

adjoint sensitivity

adjoint model

adjoint equation

adjoint assimilation

adiabatically enclosed system

adiabatic trial

adiabatic temperature gradient

adiabatic temperature changes

adiabatic saturation temperature

adiabatic saturation pressure

adiabatic saturation point

adiabatic equilibrium

adiabatic chart

adiabatic atmosphere

adiabat

adhesive water

adhesion efficiency

adfreezing

ADCP

adaptive observations

adaptive observational network

adaptive grid

adaptation strategies

adaptation luminance

adaptability

actual time of observation

actual pressure

actual evaporation

actual elevation

activity coefficient

activity

active system

active site

Active region

active permafrost

active nitrogen

active layer

active front

active cloud

active basin area

activation energy

activated complex theory

actinon

actinometry

actinometer

actinograph

actinogram

actinic flux

actinic

acrolein

acre-foot

acoustic–gravity wave

acoustic wave

acoustic velocimeter

acoustic transponder

acoustic transducer

acoustic tomography

acoustic thermometer

acoustic sounding

acoustic signature

acoustic scintillation

acoustic scattering

acoustic reverberation

acoustic refraction

acoustic resonance

acoustic reflectivity

acoustic reflection profiling

acoustic rain gauge

acoustic radar

acoustic pressure

acoustic ocean current meter

acoustic lens

acoustic intensity

acoustic impedance

acoustic imaging

acoustic echo sounding

acoustic Doppler current profiler

acoustic dispersion

acoustic backscattering

acoustic array

aclinic line

acidity profile

acidity of water

acid rain

acid pollution

acid fog

acid deposition

acicular ice

acetylene

acetonitrile

acetone

acetic acid

acetaldehyde

acdar

accuracy

accumulation zone

accumulation rain gauge

accumulation mode

accumulation area

accumulation

accumulated temperature

accumulated cooling

accretion

acclimatization

acclimation

accessory cloud

acceptance region

acceptance capacity

accelerometer

accelerated erosion

ACC

abstraction

absorptivity

absorption spectrum

absorption optical thickness

absorption loss

absorption line

absorption hygrometer

absorption cross section

absorption band

absorption

absorptance

absorbed solar radiation

absorbance

absolute zero

absolute vorticity

absolute velocity

absolute temperature scale

absolute temperature extremes

absolute standard barometer

absolute stability

absolute refractive index

Absolute Radiation Scale

absolute monthly minimum temperature

absolute monthly maximum temperature

absolute momentum

absolute isohypse

absolute instrument

absolute instability

absolute extremes

absolute drought

absolute coordinate system

absolute annual range of temperature

absolute cavity radiometer

absolute angular momentum

absolute altitude

absolute

abscissa

Abrolhos squalls

abnormality

abnormal

ablation area

ablation

ABL

abiotic

ABI

abduction

abbreviated ship code

abatement

ab-polar current

AAMW

A/D converter

A-display

Aurora

Autumnal equinox

Attenuation coefficient

Artificial horizon

Astronomical horizon

Attractor

Aspiration thermograph

Arched squall

Arc discharge

Anvil

Antineutron

Anomaly