Steampunk Catfish submarine drones and their use in ...€¦ · 4/24/2018 · Steampunk Catfish: Submarine drones and their potential use in environmental reconnaissance. - April
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Steampunk Catfish: Submarine drones and their potential use in environmental reconnaissance.
- April 24, 2018
Alan KolokIdaho Water Resources Research Institute
U of I, Moscow
John ShovicCollege of Engineering, U of I, Coeur d’Alene
Daniele ToninaCenter for Ecohydraulics Research
U of I, Boise
1. WHY A DRONE?
2. THE U OF I SUBMERSIBLE DRONE:THE CATFISH.
3. CHALLENGES
1. WHY A DRONE?
Eutrophication 101:(Nutrient enrichment)
1. Fertilizer
2. Runoff(N & P)
3. Algal blooms
4. Death and decomposition
5. Hypoxia
[O2] < 2.0 mg/L
Limnology 101: Temperate lakes thermally stratify in summer.
Limnology 101: Eutrophication in a thermally stratified lake.
Algal blooms
Algal death and decomposition
Hypoxia [O2] < 2.0 mg/L
Metal liberation in a stratified lake.
Cd Zn Pb
As dissolved oxygen drops, pH also drops and metals are liberated from the sediments.
[O2] ; pH
pH
LAKE CDA’S DECLINING OXYGEN LEVELS WORRY SCIENTISTS
March 22, 2016
August 4, 2017
The Gulf of Mexico dead zone is larger
than ever.
1. WHY A DRONE?
2. THE U OF I SUBMERSIBLE DRONE:THE CATFISH.
3. CHALLENGES
The IWRRI Catfish: U of I’s submarine drone
1. WHY A DRONE?
2. THE U OF I SUBMERSIBLE DRONE:THE CATFISH.
3. CHALLENGES
Water Air_
Weight No YesConstraints
Manueverability Good Excellent
Visibility Fair to none Excellent
Communicate No* Yeswith operator
Pressure Yes No
Buoyancy Excellent None
Location
A sonar system (forward, back, up down) will allow the drone to know where it is within the lake in 3 dimensions.
The Minnow:
The Minnow is an autonomous, ground based robot used to test the navigation system being developed for the U of I Catfish.
Sensors
The catfish will be equipped with probes for:
- Dissolved Oxygen - Temperature- Pressure - Depth
But not for:Metal ions (Pb, Cu, Zn)
The IWRRI Catfish: U of I’s submarine drone
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