Near-surface, soil, and air temperature data acquired across multiple locations on the San Joaquin Experimental Range, California, 2011-2017.

Davis F. W. (2018)

These temperature records were collected as part of a larger study relating microclimates to tree seedling survival in southern California mountains. These temperature records are for studies at the San Joaquin Experimental Range (Lat 37.083, Long -119.716, elevation 210-520 m, Temperature sensors were located at 23 sites across the landscape. Sites were selected to sample topographic variation in surface and air temperatures within a narrow range of elevations on northeast to southwest-facing slopes, ridges, and valleys. To characterize surface temperature variation within a site, 21 sensors were arranged in an identical pattern around and in six, 5×5 m experimental gardens. An additional 18 sensors were placed along three transects over the landscape running E-W. They were placed strategically to sample topographic inflection points (hill tops and valley bottoms) as well as north and south facing slopes. Temperatures were recorded on a 10 or 20-minute interval, depending on the sensor, using HOBO (Onset, devices.

Time series of daily maximum and minimum surface temperatures at San Joaquin Experimental Range (SJER) and Teakettle Experimental Forest (TEF) for the 2013 calendar year. Solid lines are daily mean values across sample sites. Shaded regions are ± 2 standard deviations. (Creator: Nicholas W Synes)


Additional Information

This data is part of a larger dataset of soil, near-surface, and temperature data, including meteorological data and seedling data. These datasets were acquired across multiple locations in southern California mountains from 2011 to 2017. All project data and down-scaled climate grids of the region are available at

Funding was provided by the U.S. National Science Foundation Macrosystems Biology Program, project EF-1065864, “Do microenvironments govern macroecology?” and by NSF EAGER-NEON Grant EF-1550653, “How do microscale biophysical processes mediate ecosystem shifts during climate change-driven drought?”

We thank the USDA Forest Service (in particular our collaborator Malcolm North), the Tejon Ranch Company, the Tejon Ranch Conservancy, and UCSB’s Earth Research Institute for their assistance and support.

Recommended citation for this data package

Davis F. W. 2018. Near-surface, soil, and air temperature data acquired across multiple locations on the San Joaquin Experimental Range, California, 2011-2017. Environmental Data Initiative.


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