presenceIce: Presence or absence of sea ice from logbook records of annual cruises
Description
Data containing 52717 observations about presence of sea ice from logbook
records of annual cruises to the B-C-B in an unbroken record between
years 1850 to 1910.
Usage
data(presenceIce)
Arguments
Format
The dataframe contains the following columns:
ship.id
The code number for ships.
move.type
Type of movement of ships. 0 indicates a sail-powered
vessel and 1 indicates an auxiliary-powered vessel.
year
Year of registry.
month
Month of registry.
day
Day of registry.
lat.dec
Decimal latitude.
long.dec
Decimal longitude.
e.w
East or west of the Prime Meridian.
ice.cov
Sea Ice Observed. 0 no see (Not registered) and 1 presence
sea ice (Registered).
References
Mahoney A, Bockstoce J, Botkin D, Eicken H, Nisbet R. 2011. Sea-Ice
Distribution in the Bering and Chukchi Seas: Information from Historical
Whaleships' Logbooks and Journals
ARCTIC. 64(4): 465-477.