Providence Creek Subcatchment P301

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The P301 subcatchment is one of the most heavily instrumented and monitored Southern Sierra CZO sites in the Providence Creek headwaters, including the P301 eddy covariance flux tower, critical zone tree, and water balance transect.

0.992 km2   Area

1790 - 2117 m   Elev

Parent Field Area:
Providence Creek headwater catchments ▲

© Southern Sierra Critical Zone Observatory

Areas within Providence Creek Subcatchment P301

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Setting & Research
Overview Maps
Data
Photos
  • Setting & Research

    Flux Tower

    An eddy covariance flux tower is located near the top of the P301 subcatchment. This data can be analyzed to determine the physiological responses of the site (for example, how photosynthesis increases with light) and summed over a year to determine the carbon balance of a site (how much carbon it is gaining or losing). Three other flux towers have been instrumented at different elevations with the central Sierra Nevada region, including the San Joaquin River, Short Hair Creek and Soaproot Saddle. 


    Critical Zone Tree

    Inside the P301 subcatchment, the SSCZO's established the first Critical Zone Tree.  This CZO tree is a White Fir (Abies concolor) that has been intensely instrumented with soil moisture, temperature, and matric potential sensors, snow depth, solar radiation, and sap flow sensors, resin nutrient collectors, tension lysimeters and time lapse photography. Snowmelt patterns around the tree can be viewed in this 2008-2009 time lapse video.


    Water Balance Transect

    Also located within the headwaters of the P301 subcatchment is a series of montane meadows. A water balance transect has been established which is comprised of monitoring wells, piezometers, soil sensors, and meteorological sensors.

     

    The flux tower is used to analyze the carbon and water balance of the surrounding forest. Various instruments on the flux tower track changes in carbon dioxide, water vapor, temperature, relative humidity, among others.

  • Overview Maps

    Providence Creek Site

    Instrumentation as of the beginning of 2013.

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    Providence Creek Site - old map

    Map showing some instrumentation, including sensor network, flux tower, gauging stations, and CZT-1

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  • Data

    Flux Tower Transect, P301 - Flux Tower, Meteorology (2007-2015)
    8 components    2015 m Flux Tower, Providence Creek subcatchment P301, Providence Creek Subcatchment P301    Climatology / Meteorology, Biology / Ecology    Mike Goulden, Anne Kelly

    P301 Water Balance Transect - Soil Moisture, Soil Temperature, Snow Depth (2011-2015)
    13 components    Providence Creek Subcatchment P301    Hydrology    Roger Bales, Steven Glaser

  • Photos

    SSCZO - Critical Zone Trees

    The primary Critical Zone Tree in the Southern Sierra CZO is a White Fir (Abies concolor) that has been intensely instrumented with soil moisture, temperature, and matric potential sensors, snow depth, solar radiation, and sap flow sensors, resin nutrient collectors, tension lysimeters and time lapse photography.  The Southern Sierra CZO currently has three instrumented trees.

    A photo gallery of the Critical Zone Trees can be found here.

    SSCZO - Water Balance Transect

    Within the headwaters of the P301 catchment is a series of montane meadows. The P301 water balance transect is comprised of monitoring wells, piezometers, soil sensors, and meteorological sensors.

    A photo gallery of the P301 water balance transect can be found here.

    SSCZO - Instruments

    Hundreds of instruments and sensors have been deployed in the primary SSCZO research site of the Providence Creek watershed as well as in Wolverton basin.  Additional SSCZO flux towers and instruments have also been installed at the San Joaquin Experimental Range, Soaproot Saddle, and Short Hair Creek.

    Explore more photos of the intstuments and sensors used by SSCZO.