Raster Based GIS Conference

Tulare Lake – Southern Sierra, CA 2023 Flooding


Water is quickly flooding back into California’s Tulare Lake Basin, engulfing towns and farms, submerging roads, and reviving a so-called phantom lake. Tulare was once the largest freshwater lake west of the Mississippi until settlers diverted its source rivers, forcing it to vanish by the mid-20th century. Now, it seems Tulare Lake is back with a vengeance. There is an historic water problem in California —

  • Not enough water
  • Too much water
  • The water is not where it needs to be
  • It is often drained to the ocean without being used
  • Most is being used by agriculture
  • In the San Joaquin Valley north of Bakersfield the project area is the historic Tulare Lake.

In 1983, it took two years for farming to resume, but now the ground is considerably lower because of decades of pumping groundwater to combat drought and the snowpack melt expected to be much higher than the 1983 flood. The flooding isn’t expected to stop soon, even if the rain stops falling. The snowpack in the southern Sierra Nevada mountains boasts an astronomical 60 inches of liquid, which is 300 percent above average, according to United States Department of Agriculture Meteorologist Brad Rippey. As the snowpack melts, water will continue to flood the Tulare Lake basin.
This project explores the present condition of the Tulare Basin, describing the agricultural landscape as it is in the process of being flooded in the Spring of 2023. Using geoprocessing hydrology tools, a slide presentation is prepared that illustrates the nature of watersheds being established by flood waters and precipitation, and how viewsheds and hillshades affect these watersheds on all slopes of the Sierras.

About this Student
I currently live in Loveland, Colorado, and am married to Sarah Eaton. We have lived there for 5 years. I retired from Rocky Mountain National Park in 2014 as the Park Museum Curator. I worked for the National Park Service for 20 years, and for private business and universities conducting archaeological research and services for 20 years before that. My education includes a BA and an MA, both in Archaeology. My fields of research include the Rocky Mountain west and Southwest and Plains. Further interests include GIS, travel, politics, International history, and climate research. Lifelong education is a major goal.