Long name

Variable name

Unit

Category

Comment

Meteorology

air temperature

ta

K

1

Air temperature is the bulk temperature of the air, not the surface (skin) temperature.

specific humidity

hus

1

1

Specific means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.

air mass

airmass

kg m^-2

1

Vertically integrated mass content of air in layer

pressure

pfull

Pa

1

Air pressure on model levels

zonal  wind

ua

m/s

1

meridional wind

va

m/s

1

vertical wind

wa

m/s

1

geopotential height

Zg

m

1

cloud fraction

clt3D

%

2

cloud optical depth

cod3D

1

2

aerosol water

mmraerh2o

1

3

convective updraft mass flux

mcu

kg m-² s^-1

3

The atmosphere convective mass flux is the vertical transport of mass for a field of cumulus clouds or thermals, given by the product of air density and vertical velocity. For an area-average, cell_methods should specify whether the average is over all the area or the area of updrafts only.

Sulfur Chemistry

OCS

vmrocs

1

1

SO₂

vmrso2

1

2

DMS

vmrdms

1

2

H2S

vmr h2s

1

3

H₂SO₄ (g)

vmrh2so4

1

2

CS₂

vmrcs

1

3

SO₃

vmrso3

1

2

H₂SO₄ (p) total)

mmso4r

1

1

Mass mixing ratio of sulphate mass (total)

Mass mixing ratio of sulfate mass in each size class

H₂SO₄ (p) > 5nm

mmso4r5

1

2

OPC

H₂SO₄ (p) >150nm

mmso4r15

1

2

OPC

H₂SO₄ (p) >250nm

mmso4r25

1

2

OPC

H₂SO₄ (p) >550nm

mmso4r55

1

2

OPC

H₂SO₄ (p) >750nm

mmso4r75

1

2

OPC

H₂SO₄ (p) >1000nm

mmso4r100

1

2

OPC

Microphysical processes

number formation through nucleation

nucpn

m^-3 s^-1

2

sedimentation of SO₄

sedso4

kg m^-2 s^-1

2

Net downward (out-below minus in-above)

H₂SO₄ condensation flux

conh2so4

kg m^-2 s^-1

2

Net transfer into the particulate phase

Chemistry

N₂O

vmrn2o

1

3

OH

vmroh

1

1

O₃

vmro3

1

1

HNO₃

vmrhno3

1

3

NO

vmrno

1

3

NO₂

vmrno2

1

3

N₂O₅

vmrn2o5

1

3

Bulk parameters

surface area density

sad

m²/m³

1

effective radius

reff

M

1

Particle numbers

N total

conccn

m^-3

1

number_concentration_of_ambient_aerosol_in_air

N> 5nm

conc5

m^-3

2

CPC

N>150nm

conc150

m^-3

2

OPC

N>250nm

conc250

m^-3

2

OPC

N>550nm

conc550

m^-3

2

OPC

N>750nm

conc750

m^-3

2

OPC

N>1000nm

conc1000

m^-3

2

OPC

Extinction

Aerosol extinction @386nm

ec386aer

m^-1

2

SAGEII/III, (POAM, shipborne lidar)

Aerosol extinction @440nm

ec440aer

m-¹

3

Aerosol extinction @525nm

ec525aer

m-¹

1

SAGE-II

Aerosol extinction @750nm

ec750aer

m^-1

2

OSIRIS

Aerosol extinction @870nm

ec870aer

m^-1

3

Aerosol extinction @1020nm

ec1020aer

m^-1

1

SAGEII

Aerosol extinction @3460nm

ec3460aer

m^-1

2

HALOE

Aerosol extinction @5260nm

ec5260aer

m-1

2

HALOE

aerosol extinction @12660nm

ec12660aer

m^-1

3

ISAMS

Absorption

aerosol absorption @386nm

abs386aer

m^-1

3

SAGEII/III, (POAM, shipborne lidar)

aerosol absorption@440nm

abs440aer

m^-1

3

aerosol absorption @525nm

abs525aer

m^-1

2

SAGE-II

aerosol absorption@750nm

abs750aer

m^-1

3

OSIRIS

aerosol absorption @870nm

abs870aer

m^-1

3

aerosol absorption @1020nm

abs1020aer

m^-1

2

SAGE-II

aerosol absorption @3460nm

abs3460aer

m^-1

3

HALOE

aerosol absorption @5260nm

abs5260aer

m^-1

3

HALOE

aerosol absorption @12660nm

abs12660aer

m^-1

3

ISAMS

asymmetry factor@525nm

asy525aer

1

1