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, www.fs.fed.us/psw/ef/san_joaquin/). 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, 5x5 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, www.onsetcomp.com) devices.
