A Comparison of the Diel Cycle of Modeled and Measured Latent Heat Flux During the Warm Season in a Colorado Subalpine Forest
Abstract
Abstract Precipitation changes the physiological characteristics of an ecosystem. Because land‐surface models are often used to project changes in the hydrological cycle, modeling the effect of precipitation on the latent heat flux λE is an important aspect of land‐surface models. Here we contrast conditionally sampled diel composites of the eddy‐covariance fluxes from the Niwot Ridge Subalpine Forest AmeriFlux tower with the Community Land Model (CLM, version 4.5). With respect to measured λE during the warm season: for the day following above‐average precipitation, λE was enhanced at midday by ≈40 W m −2 (relative to dry conditions), and nocturnal λE increased from ≈10 W m −2 in dry conditions to over 20 W m −2 in wet conditions. With default settings, CLM4.5 did not successfully model these changes. By increasing the amount of time that rainwater was retained by the canopy/needles, CLM was able to match the observed midday increase in λE on a dry day following a wet day. Stable nighttime conditions were problematic for CLM4.5. Nocturnal CLM λE had only a small (≈3 W m −2 ) increase during wet conditions, CLM nocturnal friction velocity u ∗ was smaller than observed u ∗ , and CLM canopy air temperature was 2°C less thanmore »
- Authors:
-
- Department of Geography University of Colorado Boulder CO USA, National Center for Atmospheric Research Boulder CO USA
- National Center for Atmospheric Research Boulder CO USA
- National Center for Atmospheric Research Boulder CO USA, Institute of Arctic and Alpine Research, University of Colorado Boulder CO USA
- Institute of Arctic and Alpine Research, University of Colorado Boulder CO USA, School of Geography and Development University of Arizona, the College of Social and Behavioral Sciences Tucson AZ USA
- Department of Geography University of Colorado Boulder CO USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1424803
- Alternate Identifier(s):
- OSTI ID: 1424805
- Resource Type:
- Published Article
- Journal Name:
- Journal of Advances in Modeling Earth Systems
- Additional Journal Information:
- Journal Name: Journal of Advances in Modeling Earth Systems Journal Volume: 10 Journal Issue: 3; Journal ID: ISSN 1942-2466
- Publisher:
- American Geophysical Union (AGU)
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Burns, Sean P., Swenson, Sean C., Wieder, William R., Lawrence, David M., Bonan, Gordon B., Knowles, John F., and Blanken, Peter D. A Comparison of the Diel Cycle of Modeled and Measured Latent Heat Flux During the Warm Season in a Colorado Subalpine Forest. United States: N. p., 2018.
Web. doi:10.1002/2017MS001248.
Burns, Sean P., Swenson, Sean C., Wieder, William R., Lawrence, David M., Bonan, Gordon B., Knowles, John F., & Blanken, Peter D. A Comparison of the Diel Cycle of Modeled and Measured Latent Heat Flux During the Warm Season in a Colorado Subalpine Forest. United States. https://doi.org/10.1002/2017MS001248
Burns, Sean P., Swenson, Sean C., Wieder, William R., Lawrence, David M., Bonan, Gordon B., Knowles, John F., and Blanken, Peter D. Thu .
"A Comparison of the Diel Cycle of Modeled and Measured Latent Heat Flux During the Warm Season in a Colorado Subalpine Forest". United States. https://doi.org/10.1002/2017MS001248.
@article{osti_1424803,
title = {A Comparison of the Diel Cycle of Modeled and Measured Latent Heat Flux During the Warm Season in a Colorado Subalpine Forest},
author = {Burns, Sean P. and Swenson, Sean C. and Wieder, William R. and Lawrence, David M. and Bonan, Gordon B. and Knowles, John F. and Blanken, Peter D.},
abstractNote = {Abstract Precipitation changes the physiological characteristics of an ecosystem. Because land‐surface models are often used to project changes in the hydrological cycle, modeling the effect of precipitation on the latent heat flux λE is an important aspect of land‐surface models. Here we contrast conditionally sampled diel composites of the eddy‐covariance fluxes from the Niwot Ridge Subalpine Forest AmeriFlux tower with the Community Land Model (CLM, version 4.5). With respect to measured λE during the warm season: for the day following above‐average precipitation, λE was enhanced at midday by ≈40 W m −2 (relative to dry conditions), and nocturnal λE increased from ≈10 W m −2 in dry conditions to over 20 W m −2 in wet conditions. With default settings, CLM4.5 did not successfully model these changes. By increasing the amount of time that rainwater was retained by the canopy/needles, CLM was able to match the observed midday increase in λE on a dry day following a wet day. Stable nighttime conditions were problematic for CLM4.5. Nocturnal CLM λE had only a small (≈3 W m −2 ) increase during wet conditions, CLM nocturnal friction velocity u ∗ was smaller than observed u ∗ , and CLM canopy air temperature was 2°C less than those measured at the site. Using observed u ∗ as input to CLM increased λE ; however, this caused CLM λE to be increased during both wet and dry periods. We suggest that sloped topography and the ever‐present drainage flow enhanced nocturnal u ∗ and λE . Such phenomena would not be properly captured by topographically blind land‐surface models, such as CLM.},
doi = {10.1002/2017MS001248},
journal = {Journal of Advances in Modeling Earth Systems},
number = 3,
volume = 10,
place = {United States},
year = {Thu Mar 08 00:00:00 EST 2018},
month = {Thu Mar 08 00:00:00 EST 2018}
}
https://doi.org/10.1002/2017MS001248
Web of Science
Works referenced in this record:
The relative contributions of alpine and subalpine ecosystems to the water balance of a mountainous, headwater catchment: WATER BALANCE OF A MIXED ALPINE/SUBALPINE HEADWATER CATCHMENT
journal, June 2015
- Knowles, John F.; Harpold, Adrian A.; Cowie, Rory
- Hydrological Processes, Vol. 29, Issue 22
Atmospheric Stability Effects on Wind Fields and Scalar Mixing Within and Just Above a Subalpine Forest in Sloping Terrain
journal, November 2010
- Burns, Sean P.; Sun, Jielun; Lenschow, Donald H.
- Boundary-Layer Meteorology, Vol. 138, Issue 2
Exploring Self-Correlation in Flux–Gradient Relationships for Stably Stratified Conditions
journal, November 2006
- Baas, P.; Steeneveld, G. J.; van de Wiel, B. J. H.
- Journal of the Atmospheric Sciences, Vol. 63, Issue 11
An Introduction to flux Measurements in Difficult Conditions
journal, September 2008
- Finnigan, John
- Ecological Applications, Vol. 18, Issue 6
Evaporation from the wet canopy of a pine forest
journal, December 1977
- Stewart, J. B.
- Water Resources Research, Vol. 13, Issue 6
A Predictive Model of Rainfall Interception in Forests. II. Generalization of the Model and Comparison with Observations in Some Coniferous and Hardwood Stands
journal, April 1975
- Rutter, A. J.; Morton, A. J.; Robins, P. C.
- The Journal of Applied Ecology, Vol. 12, Issue 1
Treatment of Undercanopy Turbulence in Land Models
journal, December 2005
- Zeng, Xubin; Barlage, Michael; Dickinson, Robert E.
- Journal of Climate, Vol. 18, Issue 23
Toward biologically meaningful net carbon exchange estimates for tall, dense canopies: Multi-level eddy covariance observations and canopy coupling regimes in a mature Douglas-fir forest in Oregon
journal, May 2013
- Thomas, Christoph K.; Martin, Jonathan G.; Law, Beverly E.
- Agricultural and Forest Meteorology, Vol. 173
Improving canopy processes in the Community Land Model version 4 (CLM4) using global flux fields empirically inferred from FLUXNET data
journal, January 2011
- Bonan, Gordon B.; Lawrence, Peter J.; Oleson, Keith W.
- Journal of Geophysical Research, Vol. 116, Issue G2
Fluxes of energy, water, and carbon dioxide from mountain ecosystems at Niwot Ridge, Colorado
journal, April 2014
- Knowles, John F.; Burns, Sean P.; Blanken, Peter D.
- Plant Ecology & Diversity, Vol. 8, Issue 5-6
Modeling stomatal conductance in the earth system: linking leaf water-use efficiency and water transport along the soil–plant–atmosphere continuum
journal, January 2014
- Bonan, G. B.; Williams, M.; Fisher, R. A.
- Geoscientific Model Development, Vol. 7, Issue 5
Evaporation components of a boreal forest: variations during the growing season
journal, October 1997
- Grelle, A.; Lundberg, A.; Lindroth, A.
- Journal of Hydrology, Vol. 197, Issue 1-4
Nocturnal evapotranspiration in eddy-covariance records from three co-located ecosystems in the Southeastern U.S.: Implications for annual fluxes
journal, September 2009
- Novick, K. A.; Oren, R.; Stoy, P. C.
- Agricultural and Forest Meteorology, Vol. 149, Issue 9
Characterizing the diurnal patterns of errors in the prediction of evapotranspiration by several land-surface models: An NACP analysis: Error patterns in modeled transpiration
journal, July 2014
- Matheny, Ashley M.; Bohrer, Gil; Stoy, Paul C.
- Journal of Geophysical Research: Biogeosciences, Vol. 119, Issue 7
Controls over ozone deposition to a high elevation subalpine forest
journal, September 2009
- Turnipseed, Andrew A.; Burns, Sean P.; Moore, David J. P.
- Agricultural and Forest Meteorology, Vol. 149, Issue 9
Evaluating the JULES Land Surface Model Energy Fluxes Using FLUXNET Data
journal, April 2010
- Blyth, Eleanor; Gash, John; Lloyd, Amanda
- Journal of Hydrometeorology, Vol. 11, Issue 2
Use of FLUXNET in the Community Land Model development: USE OF FLUXNET IN THE CLM DEVELOPMENT
journal, March 2008
- Stöckli, R.; Lawrence, D. M.; Niu, G. -Y.
- Journal of Geophysical Research: Biogeosciences, Vol. 113, Issue G1
Assessing a dry surface layer-based soil resistance parameterization for the Community Land Model using GRACE and FLUXNET-MTE data
journal, September 2014
- Swenson, S. C.; Lawrence, D. M.
- Journal of Geophysical Research: Atmospheres, Vol. 119, Issue 17
Improvements to the Community Land Model and their impact on the hydrological cycle: COMMUNITY LAND MODEL HYDROLOGY
journal, March 2008
- Oleson, K. W.; Niu, G. -Y.; Yang, Z. -L.
- Journal of Geophysical Research: Biogeosciences, Vol. 113, Issue G1
Effects of soil wetness, plant litter, and under-canopy atmospheric stability on ground evaporation in the Community Land Model (CLM3.5): NEW SCHEMES FOR CLM3.5 SOIL EVAPORATION
journal, January 2009
- Sakaguchi, Koichi; Zeng, Xubin
- Journal of Geophysical Research: Atmospheres, Vol. 114, Issue D1
Estimation of vertical profiles of leaf drying times after daytime rainfall within a Bornean tropical rainforest
journal, August 2008
- Kume, Tomonori; Manfroi, Odair J.; Suzuki, Masakazu
- Hydrological Processes, Vol. 22, Issue 18
The Partitioning of Evapotranspiration into Transpiration, Soil Evaporation, and Canopy Evaporation in a GCM: Impacts on Land–Atmosphere Interaction
journal, August 2007
- Lawrence, David M.; Thornton, Peter E.; Oleson, Keith W.
- Journal of Hydrometeorology, Vol. 8, Issue 4
Evaporation into the Atmosphere: Theory, History and Applications
book, January 1982
- Brutsaert, Wilfried
- Environmental Fluid Mechanics (book series)
Seasonal patterns and environmental control of carbon dioxide and water vapour exchange in an ecotonal boreal forest
journal, December 1999
- Hollinger, D. Y.; Goltz, S. M.; Davidson, E. A.
- Global Change Biology, Vol. 5, Issue 8
The FIFE surface diurnal cycle climate
journal, January 1995
- Betts, Alan K.; Ball, J. H.
- Journal of Geophysical Research, Vol. 100, Issue D12
Pinedale and Bull Lake Glaciation in Upper St. Vrain Drainage Basin, Boulder County, Colorado
journal, October 1969
- Madole, Richard F.
- Arctic and Alpine Research, Vol. 1, Issue 4
An observational constraint on stomatal function in forests: evaluating
coupled carbon and water vapor exchange with carbon isotopes in the
Community Land Model (CLM4.5)
journal, January 2016
- Raczka, Brett; Duarte, Henrique F.; Koven, Charles D.
- Biogeosciences, Vol. 13, Issue 18
The UCD Advanced Canopy-Atmosphere-Soil Algorithm: Comparisons with observations from different climate and vegetation regimes
journal, October 2000
- Pyles, R. David; Weare, Bryan C.; Pawu, Kyaw Tha
- Quarterly Journal of the Royal Meteorological Society, Vol. 126, Issue 569
'Single-Layer Models of Evaporation From Plant Canopies Are Incorrect but Useful, Whereas Multilayer Models Are Correct but Useless': Discuss
journal, January 1988
- Raupach, Mr; Finnigan, Jj
- Functional Plant Biology, Vol. 15, Issue 6
Rainfall interception and the coupled surface water and energy balance
journal, December 2015
- van Dijk, Albert I. J. M.; Gash, John H.; van Gorsel, Eva
- Agricultural and Forest Meteorology, Vol. 214-215
Limitations to winter and spring photosynthesis of a Rocky Mountain subalpine forest
journal, April 2018
- Bowling, David R.; Logan, Barry A.; Hufkens, Koen
- Agricultural and Forest Meteorology, Vol. 252
The Contribution of Advective Fluxes to net Ecosystem Exchange in a High-Elevation, Subalpine Forest
journal, September 2008
- Yi, Chuixiang; Anderson, Dean E.; Turnipseed, Andrew A.
- Ecological Applications, Vol. 18, Issue 6
Intercomparison of Bulk Aerodynamic Algorithms for the Computation of Sea Surface Fluxes Using TOGA COARE and TAO Data
journal, October 1998
- Zeng, Xubin; Zhao, Ming; Dickinson, Robert E.
- Journal of Climate, Vol. 11, Issue 10
Spatial and temporal controls of soil respiration rate in a high-elevation, subalpine forest
journal, April 2003
- Scott-Denton, L.
- Soil Biology and Biochemistry, Vol. 35, Issue 4
Canopy skin temperature variations in relation to climate, soil temperature, and carbon flux at a ponderosa pine forest in central Oregon
journal, October 2016
- Kim, Youngil; Still, Christopher J.; Hanson, Chad V.
- Agricultural and Forest Meteorology, Vol. 226-227
Energy budget above a high-elevation subalpine forest in complex topography
journal, January 2002
- Turnipseed, A. A.; Blanken, P. D.; Anderson, D. E.
- Agricultural and Forest Meteorology, Vol. 110, Issue 3
Improving land surface models with FLUXNET data
journal, January 2009
- Williams, M.; Richardson, A. D.; Reichstein, M.
- Biogeosciences, Vol. 6, Issue 7
Flow divergence and density flows above and below a deciduous forest
journal, August 2006
- Froelich, N. J.; Schmid, H. P.
- Agricultural and Forest Meteorology, Vol. 138, Issue 1-4
Stable Atmospheric Boundary Layers and Diurnal Cycles: Challenges for Weather and Climate Models
journal, November 2013
- Holtslag, A. A. M.; Svensson, G.; Baas, P.
- Bulletin of the American Meteorological Society, Vol. 94, Issue 11
50 Years of the Monin–Obukhov Similarity Theory
journal, June 2006
- Foken, Thomas
- Boundary-Layer Meteorology, Vol. 119, Issue 3
Evaluating the Performance of Land Surface Models
journal, November 2008
- Abramowitz, Gab; Leuning, Ray; Clark, Martyn
- Journal of Climate, Vol. 21, Issue 21
Evaluating a Model of Evaporation and Transpiration with Observations in a Partially Wet Douglas-Fir Forest
journal, September 2003
- Bosveld, Fred C.; Bouten, Willem
- Boundary-Layer Meteorology, Vol. 108, Issue 3
Spatial and temporal variability in forest-atmosphere CO2 exchange
journal, October 2004
- Hollinger, D. Y.; Aber, J.; Dail, B.
- Global Change Biology, Vol. 10, Issue 10
Understanding the Daily Cycle of Evapotranspiration: A Method to Quantify the Influence of Forcings and Feedbacks
journal, December 2010
- van Heerwaarden, Chiel C.; Vilà-Guerau de Arellano, Jordi; Gounou, Amanda
- Journal of Hydrometeorology, Vol. 11, Issue 6
Reconciling leaf physiological traits and canopy flux data: Use of the TRY and FLUXNET databases in the Community Land Model version 4: COMMUNITY LAND MODEL CANOPY SCALING
journal, June 2012
- Bonan, Gordon B.; Oleson, Keith W.; Fisher, Rosie A.
- Journal of Geophysical Research: Biogeosciences, Vol. 117, Issue G2
Continuous, long-term, high-frequency thermal imaging of vegetation: Uncertainties and recommended best practices
journal, November 2016
- Aubrecht, Donald M.; Helliker, Brent R.; Goulden, Michael L.
- Agricultural and Forest Meteorology, Vol. 228-229
Evidence of pressure-forced turbulent flow in a forest
journal, February 1992
- Shaw, R. H.; Zhang, X. J.
- Boundary-Layer Meteorology, Vol. 58, Issue 3
Improving the representation of hydrologic processes in Earth System Models: REPRESENTING HYDROLOGIC PROCESSES IN EARTH SYSTEM MODELS
journal, August 2015
- Clark, Martyn P.; Fan, Ying; Lawrence, David M.
- Water Resources Research, Vol. 51, Issue 8
On Estimating Wet Canopy Evaporation from Deciduous and Coniferous Forests in the Asian Monsoon Climate
journal, June 2012
- Kang, Minseok; Kwon, Hyojung; Cheon, Jung Hwa
- Journal of Hydrometeorology, Vol. 13, Issue 3
Modeling and measuring the nocturnal drainage flow in a high-elevation, subalpine forest with complex terrain
journal, January 2005
- Yi, Chuixiang; Monson, Russell K.; Zhai, Zhiqiang
- Journal of Geophysical Research, Vol. 110, Issue D22
Tree species effects on ecosystem water-use efficiency in a high-elevation, subalpine forest
journal, September 2009
- Monson, Russell K.; Prater, Margaret R.; Hu, Jia
- Oecologia, Vol. 162, Issue 2
The Stable Atmospheric Boundary Layer over an Antarctic ice Sheet
journal, May 1999
- Handorf, Dörthe; Foken, Thomas; Kottmeier, Christoph
- Boundary-Layer Meteorology, Vol. 91, Issue 2
Scalar Concentration Profiles in the Canopy and Roughness Sublayer
journal, October 2008
- Harman, Ian N.; Finnigan, John J.
- Boundary-Layer Meteorology, Vol. 129, Issue 3
Atmospheric Stability Influences on Coupled Boundary Layer and Canopy Turbulence
journal, April 2016
- Patton, Edward G.; Sullivan, Peter P.; Shaw, Roger H.
- Journal of the Atmospheric Sciences, Vol. 73, Issue 4
The influence of warm-season precipitation on the diel cycle of the surface energy balance and carbon dioxide at a Colorado subalpine forest site
journal, January 2015
- Burns, S. P.; Blanken, P. D.; Turnipseed, A. A.
- Biogeosciences, Vol. 12, Issue 23
Coherent eddies and turbulence in vegetation canopies: The mixing-layer analogy
journal, March 1996
- Raupach, M. R.; Finnigan, J. J.; Brunei, Y.
- Boundary-Layer Meteorology, Vol. 78, Issue 3-4
Stratified Atmospheric Boundary Layers
journal, March 1999
- Mahrt, L.
- Boundary-Layer Meteorology, Vol. 90, Issue 3
EDDY COVARIANCE CO 2 FLUX MEASUREMENTS IN NOCTURNAL CONDITIONS: AN ANALYSIS OF THE PROBLEM
journal, September 2008
- Aubinet, Marc
- Ecological Applications, Vol. 18, Issue 6
Evaporation From rain-wetted forest in relation to canopy wetness, canopy cover, and net radiation
journal, December 2001
- Klaassen, Wim
- Water Resources Research, Vol. 37, Issue 12
Flux-Profile Relationships in the Atmospheric Surface Layer
journal, March 1971
- Businger, J. A.; Wyngaard, J. C.; Izumi, Y.
- Journal of the Atmospheric Sciences, Vol. 28, Issue 2
Reflections on the surface energy imbalance problem
journal, April 2012
- Leuning, Ray; van Gorsel, Eva; Massman, William J.
- Agricultural and Forest Meteorology, Vol. 156
Land-Surface-Atmosphere Coupling in Observations and Models: LAND-SURFACE-ATMOSPHERE COUPLING
journal, March 2009
- Betts, Alan K.
- Journal of Advances in Modeling Earth Systems, Vol. 1, Issue 3
Putting the "vap" into evaporation
journal, January 2007
- Shuttleworth, W. J.
- Hydrology and Earth System Sciences, Vol. 11, Issue 1
FluxnetLSM R package (v1.0): a community tool for processing FLUXNET data for use in land surface modelling
journal, January 2017
- Ukkola, Anna M.; Haughton, Ned; De Kauwe, Martin G.
- Geoscientific Model Development, Vol. 10, Issue 9
Heat storage in forest biomass improves energy balance closure
journal, January 2010
- Lindroth, A.; Mölder, M.; Lagergren, F.
- Biogeosciences, Vol. 7, Issue 1
FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem–Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities
journal, November 2001
- Baldocchi, Dennis; Falge, Eva; Gu, Lianhong
- Bulletin of the American Meteorological Society, Vol. 82, Issue 11
CO2 transport over complex terrain
journal, July 2007
- Sun, Jielun; Burns, Sean P.; Delany, Anthony C.
- Agricultural and Forest Meteorology, Vol. 145, Issue 1-2
Non-dimensional wind and temperature profiles in the atmospheric surface layer: A re-evaluation
journal, January 1988
- Högström, Ulf
- Boundary-Layer Meteorology, Vol. 42, Issue 1-2
Atmospheric Boundary Layer Flows: Their Structure and Measurement
book, March 1994
- Kaimal, J. C.; Finnigan, J. J.
Airflows and turbulent flux measurements in mountainous terrain
journal, October 2003
- Turnipseed, Andrew A.; Anderson, Dean E.; Blanken, Peter D.
- Agricultural and Forest Meteorology, Vol. 119, Issue 1-2
Nighttime Evapotranspiration from Alfalfa and Cotton in a Semiarid Climate
journal, January 2006
- Tolk, Judy A.; Howell, Terry A.; Evett, Steven R.
- Agronomy Journal, Vol. 98, Issue 3
A simple unified theory for flow in the canopy and roughness sublayer
journal, March 2007
- Harman, Ian N.; Finnigan, John J.
- Boundary-Layer Meteorology, Vol. 123, Issue 2
An approach to couple vegetation functioning and soil-vegetation-atmosphere-transfer models for semiarid grasslands during the HAPEX-Sahel experiment
journal, January 1997
- Lo Seen, D.; Chehbouni, A.; Njoku, E.
- Agricultural and Forest Meteorology, Vol. 83, Issue 1-2
Enhancement of Evaporation from a Large Northern Lake by the Entrainment of Warm, Dry Air
journal, August 2003
- Blanken, Peter D.; Rouse, Wayne R.; Schertzer, William M.
- Journal of Hydrometeorology, Vol. 4, Issue 4