ElephantSeal1: Southern Elephant seal tag data
In SWotherspoon/SGAT: Solar/Satellite Geolocation for Animal Tracking
ElephantSeal1 R Documentation
Southern Elephant seal tag data
Description
Light data from the foraging trips of the Southern elephant seal.
Format
ElephantSeal1 A data frame with 3 columns. The
columns represent
time times of measurement
light (log) light values
segment integer indicating sequence of twilight periods
ElephantSeal2 This tag is similar to ElephantSeal1
but also has columns
depth depth in the water column in metres (positive)
temp temperature in the water column in degrees celcius
ElephantSeal1calib and ElephantSealcalib2 A data
frame with 2 columns. The columns represent
zenith zenith values
light (log) light values
Details
Light intensity measurements over time from an archival tag on a
Southern elephant seal (Mirounga leonina). The seal was
tagged at the isthmus on Macquarie Island (158.950E, 54.5S), with
data from a time-depth-recorder (Mk9 TDR; Wildlife Computers,
Seattle, WA, USA). These tags provides regular time series of
measurements of depth, water temperature, and ambient light
level. The original data for ElephantSeal1 were processed
to remove values at depths greater than 15m and to classify
periods of twilight. The data for ElephantSeal2 have also
been processed for twilight periods. The seals makes one single
foraging trip, returning to the isthmus where they were tagged.
Data recorded while the seal is at the isthmus are used for
calibration (ElephantSeal1calib).
These data supplied courtesy of Mark Hindell, Institute of Marine
and Antarctic Studies, University of
Tasmania. ElephantSeal1 is B362_99 and ElephantSeal2
is C699_02
SWotherspoon/SGAT documentation built on June 1, 2022, 10:49 p.m.
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| ElephantSeal1 | R Documentation |
Southern Elephant seal tag data
Description
Light data from the foraging trips of the Southern elephant seal.
Format
ElephantSeal1 A data frame with 3 columns. The
columns represent
time | times of measurement |
light | (log) light values |
segment | integer indicating sequence of twilight periods |
ElephantSeal2 This tag is similar to ElephantSeal1
but also has columns
depth | depth in the water column in metres (positive) |
temp | temperature in the water column in degrees celcius |
ElephantSeal1calib and ElephantSealcalib2 A data
frame with 2 columns. The columns represent
zenith | zenith values |
light | (log) light values |
Details
Light intensity measurements over time from an archival tag on a
Southern elephant seal (Mirounga leonina). The seal was
tagged at the isthmus on Macquarie Island (158.950E, 54.5S), with
data from a time-depth-recorder (Mk9 TDR; Wildlife Computers,
Seattle, WA, USA). These tags provides regular time series of
measurements of depth, water temperature, and ambient light
level. The original data for ElephantSeal1 were processed
to remove values at depths greater than 15m and to classify
periods of twilight. The data for ElephantSeal2 have also
been processed for twilight periods. The seals makes one single
foraging trip, returning to the isthmus where they were tagged.
Data recorded while the seal is at the isthmus are used for
calibration (ElephantSeal1calib).
These data supplied courtesy of Mark Hindell, Institute of Marine
and Antarctic Studies, University of
Tasmania. ElephantSeal1 is B362_99 and ElephantSeal2
is C699_02
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