|
lakeid |
lake name abbreviation |
|
|
year4 |
year |
nominalYear |
|
sampledate |
sample date |
|
|
time_ping |
time of ping |
|
|
target_strength_corrected |
target strength of single fish echoes after correction for location in the acoustic beam |
decibel |
|
target_strength_uncorrected |
target strength of echoes without correction for location in the acoustic beam (raw single fish echoes) |
decibel |
|
angle_minor_axis |
angle off minor axis |
degree |
|
angle_major_axis |
angle off major axis |
degree |
|
pulselength_determ_level |
the level at which the pulse length was determined. (PLDL) The level is measured down from the maximum of the echo pulse. |
decibel |
|
samples_above_pldl |
the number of samples above the PLDL |
number |
|
pulselength_normalized_6db |
length of the received echo pulse divided by the transmitted pulse length. |
decibel |
|
pulse_start_normalized_6db |
start points of the pulse at 6dB PLDL level |
decibel |
|
transmitted_pulse_length |
length of the transmitted pulse |
millisecond |
|
target_true_depth |
true depth of single fish target corrected for position in the acoustic beam |
meter |