Topic
AIR TEMPERATURE
40
CLOUD
40
COMMENTS
40
DATE
40
FILM COUNTER
40
FRAME COUNTER FOR FILM
40
LATITUDE
LONGITUDE
40
OPEN WATER
40
RECORD
40
SEA ICE CONCENTRATION
40
SEA ICE FLOE SIZE
40
SEA ICE SNOW COVER
40
SEA ICE THICKNESS
40
SEA ICE TOPOGRAPHY
40
SEA ICE TYPE
40
SEA TEMPERATURE
40
SHIPS
40
SNOW THICKNESS
40
SNOW TYPE
40
TIME
40
TRACK
40
VIDEO RECORDER COUNTER
40
VISIBILITY CODE
40
WEATHER CODE
40
WIND DIRECTION
40
WIND VELOCITY
40
ASPECT >
30
ICE DEPTH/THICKNESS
30
ICE FLOES
30
ICE TYPES
30
PACK ICE
30
oceans
30
VISUAL OBSERVATIONS
28
ARCTIC
23
Antarctic Sea Ice Processes and Climate
23
AMD
20
CEOS
20
CRYOSPHERE
20
EARTH SCIENCE
20
GEOGRAPHIC REGION >
20
OCEAN >
20
POLAR
20
SEA ICE
20
SOUTHERN OCEAN
20
ARCTIC OCEAN
14
ACE/CRC
10
AMD/AU
10
CRYOSPHERE >
10
EARTH SCIENCE >
10
more ...