body_condition_measurements {Xcertainty}R Documentation

Humpback whale measurement data from Duke University's Marine Robotics and Remote Sensing (MaRRS) Lab

Description

Photogrammetric measurements of humpback whales to estimate total body length and body condition.

Usage

body_condition_measurements

Format

A data frame with 29 rows and 28 columns:

Animal_ID

unique ID for the individual whale

TL

total body length measurement (m)

TL.10.0..Width

Width of whale (m), pre-computed from pixels using the reported laser altimeter measurement. Width is taken at a cross-section perpendicular to the whale's center line, running from the middle of the rostrum (loosely, the whale's beak/nose) to the middle of the peduncle (the point where the tail connects to the rest of the body). The cross-section is taken 10 from the animal's rostrum to its peduncle.

TL.15.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 15 to its peduncle.

TL.20.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 20 to its peduncle.

TL.25.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 25 to its peduncle.

TL.30.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 30 to its peduncle.

TL.35.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 35 to its peduncle.

TL.40.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 40 to its peduncle.

TL.45.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 45 to its peduncle.

TL.50.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 50 to its peduncle.

TL.55.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 55 to its peduncle.

TL.60.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 60 to its peduncle.

TL.65.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 65 to its peduncle.

TL.70.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 70 to its peduncle.

TL.75.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 75 to its peduncle.

TL.80.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 80 to its peduncle.

TL.85.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 85 to its peduncle.

TL.90.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 90 to its peduncle.

TL.95.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 95 to its peduncle.

TL.5.0..Width

Same as TL.10.0..Width, but taken at a cross-section that is 5 to its peduncle.

Image

image name

BaroAlt

the barometer altitude adjusted for the launch height of the drone

LaserAlt

the altitude recorded by the laser (LiDAR) altimeter

Focal_Length

focal length of the camera (mm)

Iw

image width (px)

Sw

sensor width (mm)

Aircraft

the unoccupied aircraft system (UAS), or drone, used in data collection

Source

<https://doi.org/10.3389/fmars.2021.749943>


[Package Xcertainty version 1.0.0 Index]