The LandFlux Initiative
of the
GEWEX Radiation Panel:
First Workshop

First Workshop: The first workshop to initiate the LandFlux activity has three specific goals: to take stock of what data products we have now for land surface – atmospheric properties and fluxes (what do we have, how good are these products, what is missing?) and to organize efforts to test and improve the various analysis methods preparatory to beginning a systematic data processing project.

Dates: 28 May – 01 June, 2007

Venue: Toulouse, France

LANDFLUX Assessment and Organization Workshop
Topical Agenda

Day 1, Session 1A:	Overview of Key Land Science Issues for GEWEX and SMOS Overview
Day 1, Session 1B:	Overview of ISLSCP, GSWP and ILEAPS activities
Day 1, Session 2:		Methods for determining surface turbulent fluxes

Day 2, Session 3A:	In situ measurements of surface turbulent fluxes (e.g., FLUXNET, CEOP)
Day 2, Session 3B:	Land surface modeling issues
Day 2, Session 4A:	Coupling of Land Surface and Atmospheric Boundary Layer
Day 2, Session 4B:	Atmospheric analysis in the boundary layer

Day 3, Session 5:		Soil Moisture, Vegetation and Latent Heat Fluxes
Day 3, Session 6:		Land Hydrology, Precipitation, Snow and Runoff

Day 4, Session 7:		Land Skin-Air Temperatures, LW Radiative and Sensible Heat Fluxes
Day 4, Session 8:		Land Albedo and SW Radiative Fluxes

Day 5, Session 9:		What's Next? What Needs to be Done? How Should it be Done? 
			How do we Obtain a Land Surface Turbulent Flux Product?

The idea behind each session is to select and invite just a few speakers of two types: 1-2 longer talks that provide an overview of the connected subjects (what's known, how they connect, what the outstanding questions are) and 3-4 shorter talks on specific additional topics (like a new dataset or instrument or new result). Activities in some of these areas might then be organized separately for awhile before bringing it all back together under the heading of "fluxes & exchanges".

Session Notes

Session 2: Methods for determining surface turbulent fluxes – This session focuses on existing determinations of surface turbulent fluxes to provide an overview of the various methods available and to identify current deficiencies.

Session 3A: In situ measurements of surface turbulent fluxes – This session reviews existing in situ datasets that can be used to evaluate global analysis methods.

Session 3B: Land surface modeling issues – This session considers specific observations needed to improve understanding of land-atmosphere exchange processes and models of them.

Session 4A: Coupling of Land Surface and Atmospheric Boundary Layer – The coupling of the land surface and atmospheric boundary layer may provide some important constraints on flux determinations that should be incorporated into flux analysis methods.

Session 4B: Atmospheric analysis in boundary layer – This sessions focuses on atmospheric analyses as a source for the properties of the near-surface atmosphere, but since the quality depends on how well the boundary layer processes are represented, a more detailed and specific examination is needed.

Session 5: Soil Moisture, Latent Heat Fluxes and Vegetation – This session focuses on water on and in the uppermost surface, water fluxes and their regulation by vegetation.

Session 6: Land Hydrology, Precipitation, Snow and Runoff – This session focuses on larger-scale processes that determine water abundance on the land surface that are influenced by the topography and precipitation.

Session 7: Land Skin-Air Temperatures, LW Radiative and Sensible Heat Fluxes – This session focuses on the energy exchanges that are directly related to surface and near-surface temperatures.

Session 8: Land Albedo and SW Radiative Fluxes – This session focuses on land albedo and solar heating of the land surface.

Invitees and Associated Topics

Fred Baret (baret@avignon.fr)			Vegetation
John Bates (john.j.bates@noaa.gov)		Near-surface atmosphere (GRP)
Anton Beljaars (anton.beljaars@ecmwf.int) 		Land surface in GCMs (GEWEX)
Alan Betts (akbetts@aol.com) 			Atmospheric boundary layer
Aaron Boone 					AMMA
Boulet at Cesbio					Fluxes
Paul Dirmeyer (dirmeyer@cola.iges.org) 		Land surface modeling
Dorothy Hall (dorothy.k.hall@nasa.gov)		Snow
Forrest Hall (fghall@ltpmail.gsfc.nasa.gov) 		Surface fluxes (ISLSCP)
Paul Houser (phouser@gmu.edu) 			Land surface modeling – hydrology (NEWS)
Bart van den Hurk					GLASS
Pavel Kabat (pavel.kabat@wur.nl) 			Surface fluxes (ILEAPS)
Richard Kelly					Snow
Yann Kerr (yann.kerr@cesbio.cnes.fr) 		Soil moisture (SMOS)
Randy Koster (randal.koster@gsfc.nasa.gov) 		Latent heat fluxes – modeling (NEWS)
William Lapenta (william.m.lapenta@nasa.gov)	Land surface modeling (NEWS)
Bing Lin (bing.lin@nasa.gov) 			Surface fluxes (NEWS)
Ranga Myneni (myneni@stanislaus.bu.edu)		Vegetation
Eni Njoku (eni.g.njoku@jpl.nasa.gov) 		Soil moisture (NEWS)
Fabrice Papa (fpapa@giss.nasa.gov)			Flooding
Bernard Pinty (bernard.pinty@jrc.it) 		Surface albedo
Andy Pitman (apitman@els.mq.edu.au) 		Land surface modeling (GLASS)
Jan Polcher (jan.polcher@lmd.jussieu.fr) 		Land surface modeling (GEWEX)
Catherine Prigent (catherine.prigent@obspm.fr) 	Surface temperature, flooding (GRP)
John Roads (jroads@ucsd.edu) 			Water and energy budget (GEWEX)
Andreas Roesch (andreas.roesch@env.eth.ch)	Snow
Anni Reissell (anni.reissell@helsinki.fi) 		ILEAPS
William Rossow (wbrossow@ccny.cuny.edu) 		Energy and water budget (GRP)
Steve Running (swr@ntsg.umt.edu)			Vegetation
Crystal Schaaf (schaaf@bu.edu) 			Surface albedo
Adam Schlosser (casch@mit.edu)			Hydrology
Sonia Seneviratne (sonia.seneviratne@env.eth.ch)	Surface budgets
Paul Stackhouse (p.w.stackhouse@larc.nasa.gov)	Surface Radiative Fluxes
Marco Tedesco (mtedesco@umbc.edu)		Snow
Pedro Viterbo (pedro.viterbo@meteo.pt)		Land surface analysis (Land SAF)
Charles Vorosmarty (charles.vorosmarty@unh.edu) 	Hydrology and vegetation
Eric Wood (efwood@princeton.edu) 		Hydrology and fluxes
Xubin Zeng (xubin@atmo.arizona.edu) 		Surface temperatures
Yuanchong Zhang (yzhang@giss.nasa.gov) 		Surface radiative fluxes