Category Archives: Hydrology

Hydrology

2020 Stream Flow Project Report

The Stream Flow Project is complete for 2020. The ZIP file linked below contains all of the raw data along with graphs.

There was only one major flood in Carroll Cave during 2020. That flood occurred on 12 January. The stream level at the ladder reached about 12 feet, and below Thunder Falls it reached almost 21 feet. Other minor floods happened throughout the spring, and there was one minor event in October. read more

9 January 2021 Data Logger Service

Stream Flow Project Trip Report

Date of trip – 9 January 2021

Participants – Bill Gee (Trip leader)
Krista Bartel
Martin Carmichael
Kayla Heady
Sandra Galloway

Time in – 9:15am
Time out – 2:45pm

Areas visited – Carroll Passage, UL2, Convention Hall, Thunder Falls

This trip was the annual data logger collection trip. The goal was to download all data from every logger, and to change the battery in the rain gauge logger. read more

11 July 2020 Data Logger Service

Carroll Cave data logger and rescue cache inventory

Permit numbers 2008-01 and 2007-02

Data logger participants – Seth Colston
Kristen Godfrey
Kayla Rosen
Kayla Heady
Martin Carmichael
Tyler Skaggs
Melissa Shippy

Rescue Cache inventory – Jay Kennedy
Nick Kennedy
Rita Worden
Bill Gee

This trip was originally planned to be just a data logger service trip. The goals changed and evolved, especially in the two weeks leading up to the trip. Even on Saturday morning no one was completely sure who was going to be there and what the teams would be. By the time everyone got there we had three goals: read more

2019 Hydrology Project Report

The Carroll Cave Stream Flow Project is complete for 2019. The file linked at the bottom of this post contains all of the raw data, the processed data and full year graphs in both PDF and JPG format.

The data shows two major floods in the cave. One was in early May and the other in early June. The May flood reached just over 8 feet in Thunder River at the ladder, with almost 18 feet below Thunder Falls. The June flood reached about 3 feet at the ladder and 13 feet below Thunder Falls. read more