'Net radiation' diaporamas de présentation

GEO3020/4020 Lecture 3: Evapotranspiration (free water evaporation)

GEO3020/4020 Lecture 3: Evapotranspiration (free water evaporation). Repetition. Flux of water molecules over a surface. Z veg. Z 0. Z d. velocity. Momentum, sensible heat and water vapour (latent heat) transfer by turbulence (z-direction). Steps in the derivation of LE.

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Soil temperature and energy balance

Soil temperature and energy balance. Temperature. a measure of the average kinetic energy of the molecules of a substance that physical property which determines the direction of heat flow between two substances in thermal contact not a measure of heat content.

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Radiative Transfer, Canopy Radiation and Turbulence

Radiative Transfer, Canopy Radiation and Turbulence. Paul Dirmeyer Center for Ocean-Land-Atmosphere Studies. Radiative Transfer. Energy transfer between the surface and adjacent matter (above and below) is accomplished by various mechanisms: Radiative transfer Light (visible radiation)

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Daily Mean Temperature- Effectiveness of different observational schemes

Daily Mean Temperature- Effectiveness of different observational schemes. Colin Sowder , Lee Richardson, Alex Januzi , Dan Jones. General Outline. Our objective was to assess the variance and bias corresponding to different observational schemes for estimating mean temperature

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CE 394K.2 Hydrology, Lecture 3 Water and Energy Flow

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aircraft and tower eddy covariance flux measurements

aircraft and tower eddy covariance flux measurements. B. Gioli (IBIMET CNR, Italy). SSOS- Summer School on Optical Sampling (7-13 July 2011, Trento, Italy). Layout. 1. TOWER FLUX MEASUREMENTS 2. AIRCRAFT FLUX MEASUREMENTS 3. FLUX MANIPULATION EXPERIMENT.

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HISTORICAL EVOLUTION OF ET ESTIMATING METHODS

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Some Approaches and Issues related to ISCCP-based Land Fluxes

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MODIS /VIIRS Science Team Meeting May 15, 2008, BWI Hilton Hotel

MODIS /VIIRS Science Team Meeting May 15, 2008, BWI Hilton Hotel. Mapping land surface radiation budget from MODIS Liang, S., Wang, K., Townshend, J. University of Maryland, USA Running, S . University of Montana, USA Tsay, S. NASA/Goddard Space Flight Center, USA. Acknowledgements.

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Chapter 5 Global Temperature (Continued)

Chapter 5 Global Temperature (Continued). Lecture 12 2 February, 2005. Land versus ocean differences. Clouds and Temperature Changes. Clouds trap net radiation in lower troposphere. Clouds reduce surface insolation. Little seasonal change in ocean surface temp.

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CE 374K Hydrology, Lecture 4 Atmosphere and Atmospheric water

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CE 374K Hydrology, Lecture 4 Atmosphere and Atmospheric water

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Stable Atmosphere

Stable Atmosphere. Unstable Atmosphere. Mixing Height Definition. The mixed layer can be defined as the altitude above ground level to which pollutants vertically disperse. Fearon. Mixing Height Definition.

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Evaporation

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Clear sky Net Surface Radiative Fluxes over Rugged Terrain from Satellite Measurements

Clear sky Net Surface Radiative Fluxes over Rugged Terrain from Satellite Measurements. Tianxing Wang (txwang.rs@gmail.com) Guangjian Yan (gjyan@bnu.edu.cn) Xihan Mu (muxihan@163.com) Ling Chen (chenling8247@126.com) Beijing Normal University.

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Brad Christoffersen University of Arizona

Controls on evapotranspiration (ET) and its seasonality in select land surface models In Support of The LBA- Model Intercomparison Project (MIP). Brad Christoffersen University of Arizona. Motivation. Rising atmospheric CO 2.

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Chapter 4 The Energy Balance of The Surface

Chapter 4 The Energy Balance of The Surface. Why The SEB? What and How? SEB components (Rn, SH, LE, G, B, Tskin, ? , ? , examples) ABL (neutral, stable, unstable, Ri, z/L, entrainment, LCL, eddy covariance, bulk formulations, examples) SEB measurements SEB remote sensing

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2012 IAL Conference

2012 IAL Conference. Jasim Uddin Rod Smith Nigel Hancock Joseph Foley National Centre for Engineering In Agriculture (NCEA) University of Southern Queensland, Toowoomba QLD 4350 Australia. A novel technique to measure the total evaporation and its components during sprinkler irrigation .

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CE 394K.2 Hydrology, Lecture 2

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