Hydrology

hydrology

Dataset: 

Study number: 

308

Data set ID: 

210308003

Abstract: 

    Material moved from the overland flow of water resulting from precipitation is collected in
    belowground containers to get an estimate of that material entering and exiting the plots.
    Water and material collected in a container solely from a rain or wind event is not collected.
    Bedload oven-dry weight is obtained and the percent Loss on Ignition is calculated.

Data sources: 

data_Jornada_308003_conmod_pilot_bedload

LTER Core Area(s): 

Dataset: 

Study number: 

338

Data set ID: 

210338004

Data sources: 

data_Jornada_338004_tromble_weir_soil_moisture

LTER Core Area(s): 

Dataset: 

Study number: 

338

Data set ID: 

210338002

Abstract: 

Precipitation at 1 minute intervals for rain gauges 2-5 with R1 excluded due to periods of interruption.  Spatially averaged rainfall over the watershed is calculated in this dataset based on relative coverage of each rain gauge determined from a Theissen polygon map.

Data sources: 

data_Jornada_338002_tromble_weir_precipitation

LTER Core Area(s): 

Keywords: 

Dataset: 

Study number: 

338

Data set ID: 

210338001

Abstract: 

This files presents all of the flux data post-EdiRe processing at 30 minute resolution.  Included in this file is: Ux = Mean wind speed in the x-direction, Uy = mean wind speed in the y-direction, Uz = mean wind speed in the z-direction, Co2 = CO2 atmospheric concentrations, H2O = Water atmospheric concentrations, Press = barometric pressure, Air Temp = atmospheric temperature, wind speed = mean wind speed towards 216 degrees from north, H Flux = sensible heat flux, LE Flux = latent heat flux, C Flux = carbon flux.

Data sources: 

data_Jornada_338001_tromble_weir_flux

LTER Core Area(s): 

Project: 

Study Number: 338

Project ID: 

210338000

Original Investigator: 

Enrique Vivoni

Funding Source: 

ARO – Army Research Office

Research Area: 

Data Category: 

Dataset: 

Study number: 

381

Data set ID: 

210381002

Abstract: 

This data set was collected to provide data for comparison of the losses of dissolved nitrogen and phosphorus in the runoff from grass- and shrub- dominated plots in the Jornada Basin of southern New Mexico. This summary dataset contains the following columns for the grassland plots: Plot: the identification number for the 6 grassland plots. Q: the mean rate of discharge during the entire experiment, obtained by dividing the total runoff by l800 sec. The units are cubic centimeters per second. Total N yield: the total yield of dissolved nitrogen discharged from the plot during the duration of the experiment. The units are grams per square meter per l800 sec. This yield has been adjusted, by subtracting the content of total dissolved N applied in the simulated rainfall. Organic N yield: the yield of dissolved organic N, as above. Inorganic N yield: the yield of NH4-N plus NO3-N discharged from the plot during the duration of the experiment, as above. Total P yield: the yield of total dissolved P discharged from the plot during the duration of the experiment. The units are grams per square meter, per l800 sec. Organic P yield: the yield of dissolved organic P, as above. Inorganic P yield: the yield of PO4-P discharged from the plot during the duration of the experiment. Fines: the percent of the plot surface covered by materials < 2.0 mm diameter Gravel: the percent of the plot surface covered by materials > 2.0 mm diameter Vegetation: the percent of the plot surface covered by vegetation. Litter: the percent of the plot surface covered by plant litter. Slope: the plot in degrees

Data sources: 

data_JornadaStudy_381_nutrient_loss_grassland_nitrogen_phosphorous_chemistry_summary

LTER Core Area(s): 

Project: 

Study Number: 381

Project ID: 

210381000

Original Investigator: 

William H Schlesinger

Funding Source: 

LTER III

Research Area: 

Data Category: 

Project: 

Study Number: 1

Project ID: 

210001000

Original Investigator: 

Tim Ward

Funding Source: 

LTER I, LTER II

Research Area: 

Data Category: 

Dataset: 

Study number: 

1

Data set ID: 

210001001

Abstract: 

   

This dataset quantities vegetation cover at experimental hydrology plots on the New Mexico State University Ranch and USDA Jornada Experimental Range. Plots were located in a zone dominated by creosotebush and a zone dominated by grassland. The goal was to compare nutrient losses between shrublands and grasslands. Plant Cover was measured on 20 2 x 2 m hydrology run off plots using quadrats with 10 x 10 cm units. The number of 10x10cm squares occupied each by plant species was counted and scaled up to determine the total percent cover of each species per plot. Best available judgement was used. For instance, dense grass cover of Bouteloua eriopoda was measured while a thin cover of leaves and stems that may have been present over an area was not. With the annual grasses that were inherently sparse, cover was estimated measuring across the width of the plant. However, the central portion of the bunch grasses were measured as cover and not the scraggly leaf/stem material. Nutrient data can be found in package 210001003. This data collection is complete.

Data sources: 

data_JornadaStudy_001_hydrology_runoff_vegetation_cover

LTER Core Area(s): 

Dataset: 

Study number: 

1

Data set ID: 

210001003

Abstract: 

This dataset quantities dissolved nutrients in water surface runoff from natural rainfall events at experimental hydrology plots on the New Mexico State University Ranch and USDA Jornada Experimental Range. Chemical analyses include F, Cl, NO3, SO4 by ion chromatography, NH4 by autoanalyzer, Ca, Mg, Na, K by atomic absorption spectrophotometry, and total N and P by auto- analyzer.  Nutrient losses from shrubland plots were greater than from grassland plots. The greater nutrient losses in shrublands were due to higher runoff, rather than higher nutrient concentrations in runoff. This study is complete. Refer to:

Schlesinger, W. H., T. J. Ward, and J. Anderson. 2000. Nutrient losses in runoff from grassland and shrubland habitats in southern New Mexico II: Field plots. Biogeochemistry 49: 69-86.

Data sources: 

data_JornadaStudy_001_hydrology_runoff_plot_chemistry

LTER Core Area(s): 

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