This dataset holds Level 3 (L3) gas detection products generated from imagery collected by the Hyperspectral Thermal Emission Spectrometer (HyTES) instrument. This imagery was acquired as part of the Surface Biology and Geology High-Frequency Time Series (SHIFT) campaign on March 23, 2022. The SHIFT campaign generated precise, high-frequency data on plant communities for nearly 1,656 square kilometers across Santa Barbara County, California, US, and the nearby ocean. HyTES is a compact image spectrometer that acquires data in 256 spectral bands between 7.5 and 12 micrometers; it was deployed on a Twin Otter aircraft. The SHIFT campaign sought to demonstrate the joint use of both VSWIR and thermal infrared (TIR) data. TIR data are used to measure land surface temperature (LST), which informs models of water flux from land surface through processes such as evapotranspiration. LST is sensitive to solar heat gains and local cooling effects due to evaporative cooling. The L3 gas detection products show plume locations for five gases: methane (CH4), hydrogen sulfide (H2S), ammonia (NH3), nitrogen dioxide (N02), and sulfur dioxide (SO2). Plumes were detected using a clutter matched filter (CMF) method. These gas products were derived from atmospherically corrected radiance measurements and are provided in HDF5 format and include 91 flight scenes. In addition, overlay images for each gas product are provided in compressed Keyhole Markup Language (KMZ) along with a quicklook image.