Index Catalog // ScholarsArchive@OSU

Spatial patterns and trends of summertime low cloudiness for the Pacific Northwest, 1996-2017

Creator:: Dye, Alex W., Rastogi, Bharat, Clemesha, Rachel E. S., Kim, John B., Samelson, Roger M., Still, Christopher J., and Williams, A. Park
Abstract:: Summertime low clouds are common in the Pacific Northwest (PNW), but spatiotemporal patterns have not been characterized. We show the first maps of low cloudiness for the western PNW and North Pacific Ocean using a 22‐year satellite‐derived record of monthly mean low cloudiness frequency for May through September and supplemented...
Resource Type:: Article
Full Text:: . RESEARCH LETTER 10.1029/2020GL088121 Key Points: • Summer low cloudiness separates into four distinct

Integration of MODIS land and atmosphere products with a coupled-process model to estimate gross primary productivity and evapotranspiration from 1 km to global scales

Creator:: Ryu, Youngryel, Baldocchi, Dennis D., Kobayashi, Hideki, van Ingen, Catharine, Li, Jie, Black, T. Andy, Beringer, Jason, van Gorsel, Eva, Knohl, Alexander, Law, Beverly E., and Roupsard, Olivier
Abstract:: We propose the Breathing Earth System Simulator (BESS), an upscaling approach to quantify global gross primary productivity and evapotranspiration using MODIS with a spatial resolution of 1-5 km and a temporal resolution of 8 days. This effort is novel because it is the first system that harmonizes and utilizes MODIS...
Resource Type:: Article
Full Text:: and evapotranspiration from 1 km to global scales, Global Biogeochem. Cycles, 25, GB4017, doi:10.1029

Sensitivity of a subregional scale atmospheric inverse CO₂ modeling framework to boundary conditions

Creator:: Göckede, Mathias, Turner, David P., Michalak, Anna M., Vickers, Dean, and Law, Beverly E.
Abstract:: We present an atmospheric inverse modeling framework to constrain terrestrial biosphere CO₂ exchange processes at subregional scales. The model is operated at very high spatial and temporal resolution, using the state of Oregon in the northwestern United States as the model domain. The modeling framework includes mesoscale atmospheric simulations coupled...
Resource Type:: Article
Full Text:: boundary conditions, J. Geophys. Res., 115, D24112, doi:10.1029/2010JD014443. 1. Introduction [2

On the temporal upscaling of evapotranspiration from instantaneous remote sensing measurements to 8-day mean daily-sums

Creator:: Ryu, Youngryel, Baldocchi, Dennis D., Black, T. Andrew, Detto, Matteo, Law, Beverly E., Leuning, Ray, Miyata, Akira, Reichstein, Markus, Vargas, Rodrigo, Ammann, Christof, Beringer, Jason, Flanagan, Lawrence B., Gu, Lianhong, Hutley, Lindsay B., Kim, Joon, McCaughey, Harry, Moors, Eddy J., Rambal, Serge, and Vesala, Timo
Abstract:: The regular monitoring of evapotranspiration from satellites has been limited because of discontinuous temporal coverage, resulting in snapshots at a particular point in space and time. We developed a temporal upscaling scheme using satellite-derived instantaneous estimates of evapotranspiration to produce a daily-sum evapotranspiration averaged over an 8-day interval. We tested...
Resource Type:: Article
Full Text:: :10.1029/2006JD007506. Anthoni, P.M., Knohl, A., Rebmann, C., Freibauer, A., Mund, M., Ziegler, W

Impacts of disturbance on the terrestrial carbon budget of North America

Creator:: Kasischke, Eric S., Amiro, Brian D., Barger, Nichole N., French, Nancy H. F., Goetz, Scott J., Grosse, Guido, Harmon, Mark E., Hicke, Jeffrey A., Liu, Shuguang, and Masek, Jeffrey G.
Abstract:: Because it is an important regulator of terrestrial carbon cycling in North America, extensive research on natural and human disturbances has been carried out as part of the North American Carbon Program and the CarboNA project. A synthesis of various components of this research was carried out, and the results...
Resource Type:: Article

Remote Sensing of Photosynthetic Light-use Efficiency of the Amazonian Rainforests

Creator:: De Sousa, Celio Helder Resende
Abstract:: When conditions for photosynthesis are unfavorable, excess solar radiation is dissipated as heat from leaves through a shift in xanthophyll pigments that result in reflecting rather than absorbing light at some wave lengths. The shift in xanthophyll pigments can be quantified as a photochemical reflectance index (PRI) by monitoring specific...
Resource Type:: Dissertation

Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests

Creator:: Hudiburg, T. W., Law, B. E., and Thornton, P. E.
Abstract:: Ecosystem process models are important tools for determining the interactive effects of global change and disturbance on forest carbon dynamics. Here we evaluated and improved terrestrial carbon cycling simulated by the Community Land Model (CLM4), the land model portion of the Community Earth System Model (CESM1.0.4). Our analysis was conducted...
Resource Type:: Article

Spatial Patterns of Soil Moisture and the Relative Importance of Atmospheric Water Demand Versus Soil Moisture Availability in Limiting Late-summer Growth of Douglas-fir Under a Changing Climate

Creator:: Jarecke, Karla M.
Abstract:: The rapid pace of climate change is increasing tree mortality and highlighting the need to improve the mechanistic understanding of plant function under increased water stress. However, the processes that control soil moisture availability in steep mountainous terrain are poorly understood, as are the relative effects of atmospheric and soil...
Resource Type:: Dissertation
Full Text:: https://doi.org/10.1029/2020WR028343 Received 9 July 2020 Accepted 20 April 2021 10

Cloud shading and fog drip influence the metabolism of a coastal pine ecosystem

Creator:: Carbone, Mariah S., Williams, A. Park, Ambrose, Anthony R., Boot, Claudia M., Bradley, Eliza S., Dawson, Todd E., Schaeffer, Sean M., Schimel, Joshua P., and Still, Christopher J.
Abstract:: Assessing the ecological importance of clouds has substantial implications for our basic understanding of ecosystems and for predicting how they will respond to a changing climate. This study was conducted in a coastal Bishop pine forest ecosystem that experiences regular cycles of stratus cloud cover and inundation in summer. Our...
Resource Type:: Article

Regional dynamics of forest canopy change and underlying causal processes in the contiguous U.S.

Creator:: Schleeweis, Karen, Goward, Samuel N., Huang, Chengquan, Masek, Jeffrey G., Moisen, Gretchen, Kennedy, Robert E., and Thomas, Nancy E.
Abstract:: The history of forest change processes is written into forest age and distribution and affects earth systems at many scales. No one data set has been able to capture the full forest disturbance and land use record through time, so in this study, we combined multiple lines of evidence to...
Resource Type:: Article

ScholarsArchive@OSU

Spatial patterns and trends of summertime low cloudiness for the Pacific Northwest, 1996-2017

Integration of MODIS land and atmosphere products with a coupled-process model to estimate gross primary productivity and evapotranspiration from 1 km to global scales

Sensitivity of a subregional scale atmospheric inverse CO₂ modeling framework to boundary conditions

On the temporal upscaling of evapotranspiration from instantaneous remote sensing measurements to 8-day mean daily-sums

Impacts of disturbance on the terrestrial carbon budget of North America

Remote Sensing of Photosynthetic Light-use Efficiency of the Amazonian Rainforests

Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests

Spatial Patterns of Soil Moisture and the Relative Importance of Atmospheric Water Demand Versus Soil Moisture Availability in Limiting Late-summer Growth of Douglas-fir Under a Changing Climate

Cloud shading and fog drip influence the metabolism of a coastal pine ecosystem

Regional dynamics of forest canopy change and underlying causal processes in the contiguous U.S.

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