Date of Award

2024

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Atmospheric and Earth Science

Committee Chair

Udaysankar Nair

Committee Member

Sundar Christopher

Committee Member

John Christy

Committee Member

Aaron Kaulfus

Research Advisor

Udaysankar Nair

Subject(s)

2018 California Camp Fire, Wildfires--Environmental aspects--California, Land use, Land cover

Abstract

Research on the effects of wildfire-induced changes in land use and land cover (LULC) on atmospheric processes is limited. This thesis presents a thorough analysis using satellite remote sensing and numerical modeling to examine how land-atmosphere interactions have been altered by the burn scar from the 2018 Camp Fire event in California. Satellite data reveals significant changes in surface characteristics affecting land-atmosphere interactions, such as land cover type, vegetation fraction (-0.12), albedo (+0.01), daytime temperature (+2.5 K), and roughness length (>-90%). Numerical modeling, based on satellite-derived LULC change scenarios, indicates notable shifts in net radiation (-0.2 MJ m-2), sensible heat flux (+15Wm-2), diurnal temperature range (+5%), mesoscale circulation patterns, and rainfall patterns. The influence on cloud formation and rainfall is heightened by the fire scar's occurrence in complex terrain, with implications for water resource management and assessing drought-flood risks in fire-prone areas.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.