scholarly journals The Energy Side of Budyko: Surface‐Energy Partitioning From Hydrological Observations

2019 ◽  
Vol 46 (13) ◽  
pp. 7456-7463 ◽  
Author(s):  
Jun Yin ◽  
Salvatore Calabrese ◽  
Edoardo Daly ◽  
Amilcare Porporato
Keyword(s):  
Surface Energy ◽  
Energy Partitioning ◽  
Energy Side

scholarly journals Numerical study of surface energy partitioning on the Tibetan Plateau: comparative analysis of two biosphere models

2009 ◽  
Vol 6 (6) ◽  
pp. 10849-10881
Author(s):  
J. Hong ◽  
J. Kim
Keyword(s):  
Comparative Analysis ◽  
Tibetan Plateau ◽  
Surface Energy ◽  
Summer Monsoon ◽  
Numerical Study ◽  
Asian Summer Monsoon ◽  
Energy Partitioning ◽  
In Situ Observation ◽  
Observation Data ◽  
The Tibetan Plateau

Abstract. The Tibetan Plateau is a critical region in the research of biosphere-atmosphere interactions on both regional and global scales due to its relation to Asian summer monsoon and El Niño. The unique environment on the Plateau provides valuable information for the evaluation of the models' surface energy partitioning associated with the summer monsoon. In this study, we investigated the surface energy partitioning on this important area through comparative analysis of two biosphere models constrained by the in-situ observation data. Indeed, the characteristics of the Plateau provide a unique opportunity to clarify the structural deficiencies of biosphere models as well as new insight into the surface energy partitioning on the Plateau. Our analysis showed that the observed inconsistency between the two biosphere models was mainly related to: 1) the parameterization for soil evaporation; 2) the way to deal with roughness lengths of momentum and scalars; and 3) the parameterization of subgrid velocity scale for aerodynamic conductance. Our study demonstrates that one should carefully interpret the modeling results on the Plateau especially during the pre-monsoon period.

Surface energy partitioning and evapotranspiration over a double-cropping paddy field in Bangladesh

2011 ◽  
Vol 26 (9) ◽  
pp. 1311-1320 ◽  
Author(s):  
Md. Shahadat Hossen ◽  
Masayoshi Mano ◽  
Akira Miyata ◽  
Md. Abdul Baten ◽  
Tetsuya Hiyama
Keyword(s):  
Surface Energy ◽  
Paddy Field ◽  
Energy Partitioning ◽  
Double Cropping

Changes in surface energy partitioning in China over the past three decades

2017 ◽  
Vol 34 (5) ◽  
pp. 635-649 ◽  
Author(s):  
Yitian Qian ◽  
Pang-Chi Hsu ◽  
Chi-Han Cheng
Keyword(s):  
Surface Energy ◽  
Energy Partitioning ◽  
The Past

On measuring and remote sensing surface energy partitioning over the Tibetan Plateau––from GAME/Tibet to CAMP/Tibet

2003 ◽  
Vol 28 (1-3) ◽  
pp. 63-74 ◽  
Author(s):  
Yaoming Ma ◽  
Zhongbo Su ◽  
Toshio Koike ◽  
Tandong Yao ◽  
Hirohiko Ishikawa ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Tibetan Plateau ◽  
Surface Energy ◽  
Energy Partitioning ◽  
The Tibetan Plateau

scholarly journals Reviews and syntheses: Changing ecosystem influences on soil thermal regimes in northern high-latitude permafrost regions

2018 ◽  
Vol 15 (17) ◽  
pp. 5287-5313 ◽  
Author(s):  
Michael M. Loranty ◽  
Benjamin W. Abbott ◽  
Daan Blok ◽  
Thomas A. Douglas ◽  
Howard E. Epstein ◽  
...  
Keyword(s):  
Climate Change ◽  
Surface Energy ◽  
High Latitude ◽  
Terrestrial Ecosystem ◽  
Terrestrial Ecosystems ◽  
Energy Partitioning ◽  
Climate Feedback ◽  
Permafrost Soil ◽  
Thermal Dynamics ◽  
Northern High Latitude

Abstract. Soils in Arctic and boreal ecosystems store twice as much carbon as the atmosphere, a portion of which may be released as high-latitude soils warm. Some of the uncertainty in the timing and magnitude of the permafrost–climate feedback stems from complex interactions between ecosystem properties and soil thermal dynamics. Terrestrial ecosystems fundamentally regulate the response of permafrost to climate change by influencing surface energy partitioning and the thermal properties of soil itself. Here we review how Arctic and boreal ecosystem processes influence thermal dynamics in permafrost soil and how these linkages may evolve in response to climate change. While many of the ecosystem characteristics and processes affecting soil thermal dynamics have been examined individually (e.g., vegetation, soil moisture, and soil structure), interactions among these processes are less understood. Changes in ecosystem type and vegetation characteristics will alter spatial patterns of interactions between climate and permafrost. In addition to shrub expansion, other vegetation responses to changes in climate and rapidly changing disturbance regimes will affect ecosystem surface energy partitioning in ways that are important for permafrost. Lastly, changes in vegetation and ecosystem distribution will lead to regional and global biophysical and biogeochemical climate feedbacks that may compound or offset local impacts on permafrost soils. Consequently, accurate prediction of the permafrost carbon climate feedback will require detailed understanding of changes in terrestrial ecosystem distribution and function, which depend on the net effects of multiple feedback processes operating across scales in space and time.

scholarly journals Satellite‐Based Assessment of Land Surface Energy Partitioning–Soil Moisture Relationships and Effects of Confounding Variables

2019 ◽  
Vol 55 (12) ◽  
pp. 10657-10677 ◽  
Author(s):  
Andrew F. Feldman ◽  
Daniel J. Short Gianotti ◽  
Isabel F. Trigo ◽  
Guido D. Salvucci ◽  
Dara Entekhabi
Keyword(s):  
Soil Moisture ◽  
Surface Energy ◽  
Land Surface ◽  
Energy Partitioning ◽  
Confounding Variables

High Resolution Simulation of the Variability of Surface Energy Balance Fluxes Across Central London with Urban Zones for Energy Partitioning

2013 ◽  
Vol 147 (3) ◽  
pp. 493-523 ◽  
Author(s):  
Thomas Loridan ◽  
Fredrik Lindberg ◽  
Oriol Jorba ◽  
Simone Kotthaus ◽  
Susanne Grossman-Clarke ◽  
...  
Keyword(s):  
Energy Balance ◽  
High Resolution ◽  
Surface Energy ◽  
Surface Energy Balance ◽  
Energy Partitioning ◽  
Resolution Simulation

scholarly journals Intercomparison of the Surface Energy Partitioning in CMIP5 Simulations

Atmosphere ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 602 ◽  
Author(s):  
Yang ◽  
Wang ◽  
Huang
Keyword(s):  
Soil Moisture ◽  
Surface Energy ◽  
Land Surface ◽  
Radiative Forcing ◽  
Climate Models ◽  
Water Cycle ◽  
Potential Evapotranspiration ◽  
Sensible Heat Flux ◽  
Coupled Model ◽  
Energy Partitioning

The warming climate significantly modifies the global water cycle. Global evapotranspiration has increased over the past decades, yet climate models agree on the drying trend of land surface. In this study, we conducted an intercomparison analysis of the surface energy partitioning across Coupled Model Intercomparison Phase 5 (CMIP5) simulations and evaluated its behaviour with surface temperature and soil moisture anomalies, against the theoretically derived thermodynamic formula. Different responses over land and sea surfaces to elevated greenhouse gas emissions were found. Under the Representative Concentration Pathway of +8.5 W m−2 (RCP8.5) warming scenario, the multi-model mean relative efficiency anomaly from CMIP5 simulations is 3.83 and −0.12 over global sea and land, respectively. The significant anomaly over sea was captured by the thermodynamic solution based on the principle of maximum entropy production, with a mean relative error of 14.6%. The declining trend over land was also reproduced, but an accurate prediction of its small anomaly will require the inclusions of complex physical processes in future work. Despite increased potential evapotranspiration under rising temperatures, both CMIP5 simulations and thermodynamic principles suggest that the soil moisture-temperature feedback cannot support long-term enhanced evapotranspiration at the global scale. The dissipation of radiative forcing eventually shifts towards sensible heat flux and accelerates the warming over land, especially over South America and Europe.

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