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4th Session of the CLIVAR VAMOS Panel Montevideo, Uruguay, March 26-30, 2001

La Plata Basin Climate and Hydrology Report - LPB 17 th LBA SSC Meeting – Silva Dias Belém/PA 02-04 June 2005. 4th Session of the CLIVAR VAMOS Panel Montevideo, Uruguay, March 26-30, 2001 ICPO Publication Series No. 49 The 4 th panel meeting is organized around three main topics:

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4th Session of the CLIVAR VAMOS Panel Montevideo, Uruguay, March 26-30, 2001

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  1. La Plata Basin Climate and Hydrology Report - LPB 17th LBA SSC Meeting – Silva DiasBelém/PA 02-04 June 2005

  2. 4th Session of the CLIVAR VAMOS Panel • Montevideo, Uruguay, March 26-30, 2001 • ICPO Publication Series No. 49 • The 4th panel meeting is organized around three main topics: • The development of a La Plata Basin Program (PLATIN) (joint CLIVAR/GEWEX program) • Development of a Science Plan for a field program on marine stratocumulus along the coasts of Peru and Chile (VEPIC) • Finalise the implementation plan for the South American Low Level Jet Experiment (SALLJ) – Nov/2002-Jan/2003 – Connected to the Dry to Wet LBA Campaign (Sep-Oct/2002) • The first three days of the meeting were organized as a workshop on the Climatology and Hydrology of the La Plata Basin, including applications to power generation and agriculture. • The GEWEX SSG asked to form a Science Study Group for this project to prepare a more comprehensive scientific prospectus for this project.

  3. Membership: • Roberto Mechoso (UCLA, USA) (chair) • Walter Baethgen (IFDC, Uruguay) • Vicente Barros (UBA, Argentina) • Hugo Berbery (U. Maryland, USA) • Robin Clarke (IPH, Brazil) • Heidi Cullen (IRI, USA) • Benjamin Grassi (UNA, Paraguay) • Dennis Lettenmaier (U. Washington, USA) • Pedro da Silva Dias (USP, Brazil)

  4. Main Scientific Questions (approved by GHP in Sept. 2001) • ·How are droughts and floods in the Plata Basin characterized from a climatological and hydrological point of view? • ·      How predictable is the regional weather and climate variability and its impact on hydrological, agricultural and social systems of the basin? • ·      What is the role of global climate change and land use change on regional weather, climate, hydrology and agriculture?

  5. To properly answer these questions a number of issues on the climatology and hydrology of the Plata Basin should be addressed: 1. To what degree is the basin climatology and hydrology affected by SST anomalies? Conversely, how do the larger scale precipitation and surface winds affect the nearby oceanic circulation? Does the SACZ play an active role, or is it merely responding passively to large-scale changes? 2. How is decadal variability in the tropical Atlantic SSTs linked to precipitation anomalies in the basin, particularly in the northern part (Upper Paraguay and Paraná, Upper Bermejo and Pilcomayo) 3. What are the seasonal variations of the links between anomalies in SST and in climate over the basin? 4. What is the relative importance of local and remote sources of moisture in the basin? 5. Do soil processes play an important role in the basin? In particular, do the large variations in the flooded area of the Pantanal impact and one themselves influenced by the variations in region climatology? (long ‘memory’ – 1y)

  6. 6. Is there a climatologic impact on the Pantanal area due to the fragile environment and the great variability and persistence of the flooded areas? 7. What determines the near-cyclic variations in the major rivers of the Plata River Basin (Paraná, Paraguay, Uruguay, Negro)? 8. Can the links between near-cycles found in SST and streamflow variations be used to obtain useful probabilistic prediction of river behavior? 9. What are the climatological and hydrological characterization of droughts and floods in the Plata Basin both in time and space? 10. What developments and improvements in hydrologic models are required to better represent the relationships among model parameters and changes in soil use? 11. How predictable is the hydroclimatology variability in the Plata Basin? 12. What are the most limiting factors to adequately address these questions? 13. Do biomass burning aerosols plays any important role in the regional climatology?

  7. LPB accepted as a GEWEX Continental Scale Experiment -2004 What does it mean???

  8. GEWEX Program Strategy • Build on existing programs and data. • Conduct modeling programs to model all aspects of the hydrologic and energy cycles with evolving fully coupled atmosphere-land-ocean components. • Make recommendations to space agencies with respect to instruments planned for satellite platforms. • Conduct pilot studies with international participation encompassing the full range of experimental scales: • small scale • continental scale • global scale

  9. TECHNICAL/LOGISTICAL CRITERIA CSE i) The co-operation of a NWP center which has implemented a state-of-the-art atmospheric and surface data assimilation procedure, and will deliver estimates of hydro-meteorological properties in a form directly comparable to observables. CPTEC – Brazilian Center for Weather Forecasting and Climate Research

  10. TECHNICAL/LOGISTICAL CRITERIA (ii) A commitment of resources and personnel to purse the development of suitable atmospheric-hydrological models, develop an atmospheric atmospheric-hydrological data management and assimilation system, and to conduct an appropriate programme of numerical experimentation and climate change studies. • GEF Proposal • Regional instituitions

  11. TECHNICAL/LOGISTICAL CRITERIA (iii) A regional scientific co-operation mechanism for collectingand managing hydrometeorological data sets, including satelliteobservations, for supporting and validating the above model development.

  12. TECHNICAL/LOGISTICAL CRITERIA (iv) A commitment to participate in the international exchange of scientific information and data in conformity with the general practice of WCRP. • CPTEC commitment – (same as in LBA) • GEF constraint

  13. TECHNICAL/LOGISTICAL CRITERIA (v) Interactions with water resource agencies or related groups to better utilize improved continental-scale information to address the assessment of impacts on regional water resources. • CIC - Intergovernamental Pannel for the Plata Basin – oversees the process • Growing participation of individual national institutions/organizations (national weather services – universities – research institutes) 4 1, 2, 3

  14. TECHNICAL/LOGISTICAL CRITERIA (vi) Contributions to the evaluation of GEWEX global data products. • Field activities provide opportunity to check remote sensing products agains observations • Access to hydrometeorological regional data sets • Facilitate access of regional community to global data sets.

  15. TECHNICAL/LOGISTICAL CRITERIA (vii) Contributions to CEOP and transferability data bases. • Early actions of PLATIN: Andes LLJ experiment in 2002-2003 • More field activities planned for 2007 on (PLATEX) • CPTEC commitment – • (as in the LBA case) • Ongoing activities: Flux • Tower measurements in the • Cerrado and agricultural • Ecossystems)

  16. LPB Compliance withGEWEX CSE Technical Requirements • CPTEC and IRI, both NWP and climate prediction centers, have committed cooperation with LPB. Several national and international sources provide funding for LBP research. • LPB includes several monitoring and experimental networks (e.g. PACS SONET, SALLJEX), as well as flux towers. A PLATIN Database is available for data storage at UCAR JOSS, which also coordinates data management support. • LPB’s data policy is inspired by CEOP and used in SALLJEX. Researchers commit to the exchange of scientific information and data in conformity with the general practice of WCRP. • LPB is contributing to the evaluation of GEWEX global data products by generating in-situ data. • Models and data bases used in GAPP are been transferred to LPB. Strong collaborations with LBA are anticipated.

  17. www.joss.ucar.edu/platin

  18. OPERATIONAL SITE AT CPTEC: htpp://www.cptec.inpe.br/LPB

  19. A GEF-Supported Project Can Fund Initiatives on LPB Climate and Hydrology The UNEP, OAS and CIC, with the participation of PLATIN, are requesting funds to the Global Environmental Facility (GEF) to support planning and implementation of strategic actions to be taken by the governments of countries in La Plata Basin for the environmentally and socially sustainable economic development of the basin. Areas specifically targeted are protection and integrated management of water resources and adaptation to climatic change and variability. The request has been allocated Block A and Block B funds. *CIC: Intergovernmental Coordinating Committee for La Plata Basin

  20. A Framework Strategic Action Plan for La Plata Basin Requesting Agency: United Nations Environment Programme (UNEP) Local Executing Agency: Intergovernmental Coordinating Committee for La Plata Basin (CIC), in co-operation with water agencies of Argentina, Bolivia, Brazil, Paraguay, and Uruguay Executing Agency: Organization of American States (OAS) Funding Agency: Global Environment Facility (GEF) Current Status: Preparation phase 11/1/03-4/30/05 Preparation Cost: US $1,376,100 (US $700K GEF Block B; $676K Other Sources, including WMO) Project Total Cost: GEF has placed $15M on Reserve; Countries and Other Sources may contribute 2:1 for a potential total of US $45M.

  21. LPB Framework Project (Activity 2a) • Coordinating Group • C. Roberto Mechoso (Coordinador)Vicente Barros (Argentina) • Edgar Montenegro (Bolivia) • Pedro Silva Dias (Brasil) • Julián Báez (Paraguay) • Rafael Terra (Uruguay) Completed 7/30/04 Theme 1 Climate and hydrology review (V. Barros) Theme 2 Numerical prediction models (P. Silva Dias) Theme 3 Climate and hidrology extremes (J. Marengo) Theme 4 Technical bases and ins- trumentation (W. Baetghen)

  22. GEF Activity 2b: Implementation Plan Group 1: Regional climate and hydrological scenarios Group 2: Land use change and other regional processes Operational Products: Group 3: Meteorological and climatological observational and prediction systems Group 4: Hydrological observational and prediction systems

  23. Hydroclimatological Prediction Phase 2b: General Coordination: Dr. Vicente Ricardo Barros National Coordinators: Vicente Barros, Argentina; Edgar Montenegro, Bolivia; Pedro Silva Dias, Brazil; Julián Báez, Paraguay; Rafael Terra, Uruguay.

  24. A Field Experiment in LPB: PLATEX Scientific Issues • Strong variability of streamflows on several time scales. • Relative contributions to variability of climate and land use change are not well known. • Effecs of aerosols advection from biomas burning on precipitation and air quality/ecosystems from tropical areas are largely unknown. • Strong contribution of Mesoscale Convective Systems to total precipitation. • Predictability issue related to observation system: data frequency, location of obs., new systems (profilers, radars, new satellite data…)

  25. Water Budget – Convection Modes - • Role of Intraseasonal Oscillation in organizing convection in Amazon/Central Brazil; • Moisture flux from N. Atlantic • Moisture exchange with Plata Basin • Heat source: different vertical profiles – implication on remote response Marrakesh_waterflux.ppt

  26. Extreme events associated with MCC Disribution of MCC in the Americas in 1982 and 1983. Velasco and Fritsch (1987).

  27. Percent of extreme rainfall events in SE and S Brazil associated with SALLJ weak events (left) and strong events (right) at 60°W, 20°S (black dot). Contour lines indicate results at 5% (Liebmann et al. 2004)

  28. Motivated by GEWEX concern LPB and LBA integration (GEWEX SSG - Marrakesh Jan. 2004)

  29. LPB cptec-short.ppt

  30. LBA – focus on biosphere-atmosphere interactions in the Amazon Basin Fully institutionalized, network of participants is functioning Participants are Amazonian countries with international partners in USA and Europe Finishing Phase I - synthesis Phase II - beginning 2006 – ecosystem - atmosphere – chemistry coupled models; aerosol-radiation-precipitation issues There is funding for towers (14) S-band Doppler radars, radiosondes and surface weather stations are being maintained by SIPAM program Brazilian funding for research and maintenance of observations, NASA will be funding the synthesis of Phase I, there are ongoing projects with Europe. LPB – focus on water resources in the La Plata Basin Planning phase Is taking advantage of already on going activities to get momentum Distributed Hydrology Model has been tested with input from CPTEC models Super-ensemble of models from different institutions/countries are being combined for NWP Uses networks of PROSUR (IAI) and CLARIS as a basis MERCOSUR countries are involved Implementation plan is being prepared GEFF funding is in reserve while planning phase is under way Data up to now consists of the operational network of participating countries LBA and LPB

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