Publications

Publications Found: 1437

Gap‐Filling Approaches For Eddy Covariance Methane Fluxes: A Comparison Of Three Machine Learning Algorithms And A Traditional Method With Principal Component Analysis
Kim, Y., Johnson, M. S., Knox, S. H., Black, T. A., Dalmagro, H. J., Kang, M., Kim, J., Baldocchi, D.

Methane flux (FCH4) measurements using the eddy covariance technique have increased over the past decade. FCH4 measurements commonly include data gaps, as is the case with CO2 and energy fluxes. However, gap‐filling FCH4 data are more challenging than other fluxes due to its unique characteristics including multidriver dependency, …


Journal: Global Change Biology, Volume : (2019). DOI: 10.1111/gcb.14845 Sites: BR-Npw

Carbon dioxide balance in early-successional forests after forest fires in interior Alaska
Masahito UEYAMA, Hiroki IWATA, Hirohiko NAGANO, Narumi TAHARA, Chie IWAMA, Yoshinobu HARAZONO

Fire is the major disturbance in North American boreal forests, and is thought to be the most important process that determines the carbon balance in North American boreal forests. This study conducted four years of tower flux measurements in a burned ecosystem from one to four years after a fire, and nine years of measurements in …


Journal: Agricultural and Forest Meteorology, Volume 275: 196-207 (2019). DOI: Sites: US-Fcr, US-Rpf

Wind Sheltering Impacts On Land-Atmosphere Fluxes Over Fens
Turner, J., Desai, A. R., Thom, J., Wickland, K. P., Olson, B.

Wetlands and their ability to mitigate climate change motivates restorative and protective action; however, scientific understanding of land-atmosphere interactions is restricted by our limited continuous observations of gaseous fluxes. Many wetlands are small in spatial scale and embedded in forested landscapes. Yet, little is known …


Journal: Frontiers In Environmental Science, Volume 7: (2019). DOI: 10.3389/fenvs.2019.00179 Sites: US-ALQ, US-Los

Relationships Between Methane and Carbon Dioxide Fluxes in a Temperate Cattail‐Dominated Freshwater Wetland
Villa, J., Ju, Y., Vines, C., Rey-Sanchez, C., Morin, T.H., Wrighton, K.C., Bohrer, G.

Wetlands are the most important natural source of methane (CH4) to the atmosphere, and there is still considerable uncertainty of CH4 flux and net carbon budgets of wetlands. This uncertainty is due in part to the complex role of wetland vegetation in controlling methane production, oxidation and transport, which challenge the modeling …


Journal: Journal of Geophysical Research-Biogeosciences, Volume 124 (7): 2076-2089 (2019). DOI: 10.1029/2019JG005167 Sites: US-OWC

Thermal Imaging In Plant And Ecosystem Ecology: Applications And Challenges
Still, C., Powell, R., Aubrecht, D., Kim, Y., Helliker, B., Roberts, D., Richardson, A. D., Goulden, M.

Temperature is a primary environmental control on ecological systems and processes at a range of spatial and temporal scales. The surface temperature of organisms is often more relevant for ecological processes than air temperature, which is much more commonly measured. Surface temperature influences—and is influenced by—a range …


Journal: Ecosphere, Volume 10 (6): (2019). DOI: https://doi.org/10.1002/ecs2.2768 Sites: US-Me2, US-Wrc

Precipitation Mediates Sap Flux Sensitivity To Evaporative Demand In The Neotropics
Grossiord, C., Christoffersen, B., Alonso-Rodríguez, A. M., Anderson-Teixeira, K., Asbjornsen, H., Aparecido, L. M., Carter Berry, Z., Baraloto, C., Bonal, D., Borrego, I., Burban, B., Chambers, J. Q., Christianson, D. S., Detto, M., Faybishenko, B., Fontes, C. G., Fortunel, C., Gimenez, B. O., Jardine, K. J., Kueppers, L., Miller, G. R., Moore, G. W., Negron-Juarez, R., Stahl, C., Swenson, N. G., Trotsiuk, V., Varadharajan, C., Warren, J. M., Wolfe, B. T., Wei, L., Wood, T. E., Xu, C., McDowell, N. G.

Transpiration in humid tropical forests modulates the global water cycle and is a key driver of climate regulation. Yet, our understanding of how tropical trees regulate sap flux in response to climate variability remains elusive. With a progressively warming climate, atmospheric evaporative demand [i.e., vapor pressure deficit (VPD)] …


Journal: Oecologia, Volume 191 (3): 519-530 (2019). DOI: 10.1007/s00442-019-04513-x Sites: CR-SoC

Reviews And Syntheses: Turning The Challenges Of Partitioning Ecosystem Evaporation And Transpiration Into Opportunities
Stoy, P. C., El-Madany, T. S., Fisher, J. B., Gentine, P., Gerken, T., Good, S. P., Klosterhalfen, A., Liu, S., Miralles, D. G., Perez-Priego, O., Rigden, A. J., Skaggs, T. H., Wohlfahrt, G., Anderson, R. G., Coenders-Gerrits, A. M., Jung, M., Maes, W. H., Mammarella, I., Mauder, M., Migliavacca, M., Nelson, J. A., Poyatos, R., Reichstein, M., Scott, R. L., Wolf, S.

Evaporation (E) and transpiration (T) respond differently to ongoing changes in climate, atmospheric composition, and land use. It is difficult to partition ecosystem-scale evapotranspiration (ET) measurements into E and T, which makes it difficult to validate satellite data and land surface models. Here, we review current progress …


Journal: Biogeosciences, Volume 16 (19): 3747-3775 (2019). DOI: 10.5194/bg-16-3747-2019 Sites: US-Mj1, US-MSR

Estimating Actual Evapotranspiration From Stony-Soils In Montane Ecosystems
Parajuli, K., Jones, S. B., Tarboton, D. G., Flerchinger, G. N., Hipps, L. E., Allen, L. N., Seyfried, M. S.


Journal: Agricultural And Forest Meteorology, Volume 265: 183-194 (2019). DOI: 10.1016/j.agrformet.2018.11.019 Sites: US-Rls

From NEON field sites to data portal: a community resource for surface–atmosphere research comes online
Metzger, S., Ayres, E., Durden, D., Florian, C., Lee, R., Lunch, C., Luo, H., Pingintha-Durden, N., Roberti, J. A., SanClements, M., Sturtevant, C., Xu, K., Zulueta, R. C.

AbstractThe National Ecological Observatory Network (NEON) is a multidecadal and continental-scale observatory with sites across the United States. Having entered its operational phase in 2018, NEON data products, software, and services become available to facilitate research on the impacts of climate change, land-use change, and …


Journal: Bulletin Of The American Meteorological Society, Volume 100 (11): 2305-2325 (2019). DOI: doi:10.1175/bams-d-17-0307.1 Sites: PR-xGU, PR-xLA, US-xAB, US-xAE, US-xBA, US-xBL, US-xBN, US-xBR, US-xCL, US-xCP, US-xDC, US-xDJ, US-xDL, US-xDS, US-xGR, US-xHA, US-xHE, US-xJE, US-xJR, US-xKA, US-xKZ, US-xLE, US-xMB, US-xML, US-xNG, US-xNQ, US-xNW, US-xPU, US-xRM, US-xRN, US-xSB, US-xSC, US-xSE, US-xSJ, US-xSL, US-xSP, US-xSR, US-xST, US-xTA, US-xTE, US-xTL, US-xTR, US-xUK, US-xUN, US-xWD, US-xWR, US-xYE

Long-Term (1986–2015) Crop Water Use Characterization Over The Upper Rio Grande Basin Of United States And Mexico Using Landsat-Based Evapotranspiration
Senay, G. B., Schauer, M., Velpuri, N. M., Singh, R. K., Kagone, S., Friedrichs, M., Litvak, M. E., Douglas-Mankin, K. R.


Journal: Remote Sensing, Volume 11 (13): 1587 (2019). DOI: doi:10.3390/rs11131587 Sites: US-Mpj, US-Seg, US-Ses, US-Vcm, US-Vcp, US-Wjs