Detector Dogs and Scent Movement
Deep dive into Scent movement and the wind reading from Detector Dogs and Scent Movement by Tom Osterkamp
Date of Entry
17:55
Time Spent
1h 20m
Deep dive
Activity Type
Reading
Outcome
task_alt
Completed
Detailed Account
Notes:
- Scent movement begins when molecules leave the source and diffuse through a boundary layer in a plume upwards.
- wind speed affects movement dramatically, with no wind and moving through only diffusion it would take 2 hours to move 1ft, with a wind speed of 0.7mph it would take a single second to do the same. (basically diffusion is not a factor in scent movement in wind or water)
- Scent can move the length of a football field in a minute at a wind speed of 3mph
- Learnt about how Scent is generally heavier than standard air so as it gets pulled down hill it would pool at the bottom.
- Different air stability will affect how scent plumes move.
- e.g Looping plumes have strong convective instability causing the plume to rise and fall which can create confusion when searching.