Publications

Publications Found: 20
Warm spring reduced carbon cycle impact of the 2012 US summer drought
Wolf, S., Keenan, T.F., Fisher, J.B., Baldocchi, D.D., Desai, A.R., Richardson, A.D., Scott, R.L., Law, B.E., Litvak, M.E., Brunsell, N.A., Peters, W., van der Laan-Luijkx, I.T.

The global terrestrial carbon sink offsets one-third of the world’s fossil fuel emissions, but the strength of this sink is highly sensitive to large-scale extreme events. In 2012, the contiguous United States experienced exceptionally warm temperatures and the most severe drought since the Dust Bowl era of the 1930s, resulting …


Journal: Proceedings of the National Academy of Sciences, Volume 113 (21): 5880-5885 (2016), ISBN . DOI: 10.1073/pnas.1519620113 Sites: US-Bar, US-Ced, US-Ho1, US-KFS, US-Kon, US-Me2, US-Me6, US-MMS, US-Mpj, US-NR1, US-PFa, US-Slt, US-SRC, US-SRM, US-Ton, US-UMB, US-Var, US-Vcm, US-Vcp, US-Whs, US-Wjs, US-Wkg

The carbon balance pivot point of southwestern U.S. semiarid ecosystems: Insights from the 21st century drought
Scott, R.L., Biederman, J.A., Hamerlynck, E.P., Barron-Gafford, G.

Global-scale studies indicate that semiarid regions strongly regulate the terrestrial carbon sink.
However, we lack understanding of how climatic shifts, such as decadal drought, impact carbon sequestration across the wide range of structural diversity in semiarid ecosystems. Therefore, we used eddy covariance measurements to quantify …


Journal: Journal of Geophysical Research: Biogeosciences, Volume 120: 2612-2624 (2015), ISBN . DOI: 10.1002/2015JG003181 Sites: US-SRG, US-SRM, US-Whs, US-Wkg

The Carbon Balance Pivot Point Of Southwestern U.S. Semiarid Ecosystems: Insights From The 21st Century Drought
Scott, R. L., Biederman, J. A., Hamerlynck, E. P., Barron-Gafford, G. A.

Global-scale studies indicate that semiarid regions strongly regulate the terrestrial carbon sink. However, we lack understanding of how climatic shifts, such as decadal drought, impact carbon sequestration across the wide range of structural diversity in semiarid ecosystems. Therefore, we used eddy covariance measurements to quantify …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 120 (12): 2612-2624 (2015), ISBN . DOI: 10.1002/2015JG003181 Sites: US-SRG, US-Whs, US-Wkg

Nocturnal Soil CO2 Uptake And Its Relationship To Subsurface Soil And Ecosystem Carbon Fluxes In A Chihuahuan Desert Shrubland
Hamerlynck, E. P., Scott, R. L., Sánchez-Cañete, E. P., Barron-Gafford, G. A.

Despite their prevalence, little attention has been given to quantifying arid land soil and ecosystem carbon fluxes over prolonged, annually occurring dry periods. We measured soil [CO2] profiles and fluxes (Fs) along with volumetric soil moisture and temperature in bare interplant canopy soils and …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 118 (4): 1593-1603 (2013), ISBN . DOI: 10.1002/2013JG002495 Sites: US-Whs

Using Watershed Water Balance To Evaluate The Accuracy Of Eddy Covariance Evaporation Measurements For Three Semiarid Ecosystems
Scott, R. L.

The eddy covariance technique is a widely used and accepted method to quantify ecosystem-scale mass and energy fluxes. Eddy covariance measurements of evaporation, also known as evapotranspiration, are used to determine local, regional and global water budgets, calibrate …


Journal: Agricultural And Forest Meteorology, Volume 150 (2): 219-225 (2010), ISBN . DOI: 10.1016/j.agrformet.2009.11.002 Sites: US-SRM, US-Whs, US-Wkg

Hydrologic Response To Precipitation Pulses Under And Between Shrubs In The Chihuahuan Desert, Arizona
Moran, M. S., Hamerlynck, E. P., Scott, R. L., Stone, J. J., Holifield Collins, C. D., Keefer, T. O., Bryant, R., DeYoung, L., Nearing, G. S., Sugg, Z., Hymer, D. C.

Observations of the temporal and spatial distribution of poststorm soil moisture in open shrublands and savannas are limited, yet they are critical to understanding the interaction and feedback between moisture distribution and canopies. The objective of this analysis was to study the hydrologic impacts of precipitation pulses on …


Journal: Water Resources Research, Volume 46 (W10509): n/a-n/a (2010), ISBN . DOI: 10.1029/2009WR008842 Sites: US-Whs

Partitioning Evapotranspiration In Semiarid Grassland And Shrubland Ecosystems Using Time Series Of Soil Surface Temperature
Moran, M., Scott, R., Keefer, T., Emmerich, W., Hernandez, M., Nearing, G., Paige, G., Cosh, M., O’Neill, P.

Information about the ratio of transpiration (T) to total evapotranspiration (T/ET) is related to critical global change concerns, including shrub encroachment and non-native species invasion. In this study, a new approach was developed to partition measurements …


Journal: Agricultural And Forest Meteorology, Volume 149 (1): 59-72 (2009), ISBN . DOI: 10.1016/j.agrformet.2008.07.004 Sites: US-Whs, US-Wkg

Effect Of Remote Sensing Spatial Resolution On Interpreting Tower-Based Flux Observations
Li, F., Kustas, W. P., Anderson, M. C., Prueger, J. H., Scott, R. L.

Validation comparisons between satellite-based surface energy balance models and tower-based flux measurements over heterogeneous landscapes can be strongly influenced by the spatial resolution of the remote sensing inputs. In this paper, a two-source energy balance model developed to use thermal and visible /near-infrared remotely …


Journal: Remote Sensing Of Environment, Volume 112 (2): 337-349 (2008), ISBN . DOI: 10.1016/j.rse.2006.11.032 Sites: US-Whs, US-Wkg

Changes In Vegetation Condition And Surface Fluxes During NAME 2004
Watts, C. J., Scott, R. L., Garatuza-Payan, J., Rodriguez, J. C., Prueger, J. H., Kustas, W. P., Douglas, M.

The vegetation in the core region of the North American monsoon (NAM) system changes dramatically after the onset of the summer rains so that large changes may be expected in the surface fluxes of radiation, heat, and moisture. Most of this region lies in the rugged terrain of western Mexico and very few measurements of these fluxes …


Journal: Journal Of Climate, Volume 20 (9): 1810-1820 (2007), ISBN . DOI: 10.1175/jcli4088.1 Sites: US-Whs, US-Wkg

Partitioning Of Evapotranspiration And Its Relation To Carbon Dioxide Exchange In A Chihuahuan Desert Shrubland
Scott, R. L., Huxman, T. E., Cable, W. L., Emmerich, W. E.

Key to evaluating the consequences of woody plant encroachment on water and carbon cycling in semiarid ecosystems is a mechanistic understanding of how biological and non-biological processes influence water loss to the atmosphere. To better understand how precipitation is partitioned into the components of evapotranspiration (bare-soil …


Journal: Hydrological Processes, Volume 20 (15): 3227-3243 (2006), ISBN . DOI: 10.1002/hyp.6329 Sites: US-Whs