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5th CliC SSG Meeting December 8-11, 2008 - Geneva, Switzerland. The CEOP-High Elevations Initiative Gianni Tartari 1,2 , Chair of CEOP-HE ceop-he@evk2cnr.org with the collaboration of Elisa Vuillermoz 2 , Beth Schommer 2 , Emanuela Manfredi 2.

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slide1

5th CliC SSG Meeting

December 8-11, 2008 - Geneva, Switzerland

The CEOP-High Elevations Initiative

Gianni Tartari 1,2,Chair of CEOP-HE

ceop-he@evk2cnr.org

with the collaboration of

Elisa Vuillermoz 2 ,Beth Schommer 2,Emanuela Manfredi 2

1 Water Research Institute - National Research Council (IRSA-CNR)

2 Ev-K2-CNR Committee

slide2

Rationale

The Earth’s high elevation areas contribute to shaping local and regional climates, while also influencing general atmospheric circulation.

HE as a key element of the hydrological cycle and the primary source of many of the world’s major river systems.

Climate change is dramatically affecting these environments, especially in terms of altering hydrological cycles and causing retreat of glaciers.

Studying the multi-scale variability of the water and energy cycle at high elevations is crucial in order to assess and quantify the regional and global impacts of a rapidly changing climate

HE aims to further knowledge on physical and dynamic processes in high elevation areas, contributing to global climate and water cycle studies by providing rare but crucial information from high elevations

slide3

84% Mountainous Terrain

(Excluding Antartica)

Mountains and Mountain Forests

MOUNTAINOUS TERRAIN

7.0 % of the World surface

24.0 % of Continental surface

slide4

Hydrological significance of mountain ranges for the river basins

Viviroli, D. & R. Weingartner. 2004. The hydrological significance of mountains: from regional to global scale. Hydrology and Earth System Science, 8: 1016-1029.

slide5

Signals of climatic change

in HE areas

°C/y

References

Liu, X. and B. Chen, 2000. “ClimaticWarming in the Tibetan Plateau During Recent Decades,” in International Journal of Climatology 20: 1729-1742.

Shrestha, A.B., C.P. Wake, P.A. Mayewski, and J.E. Dibb, 1999. “Maximum Temperature Trends in the Himalaya and its Vicinity: An Analysis Based on Temperature Records from Nepal for the Period 1971 – 94” in Journal of Climate, (12) 2775-2789

Bradley R.S., M. Vuille, H.F. Diaz, W. Vergara. 2006. Threats to Water Supplies in the Tropical Andes. Science, 312: 1755

Nepal 1977-1994 °C/y

(Modify by: Shrestha et. al. 1999)

Temperature increase (per decade) as a function of elevation on the Tibetan Plateau

(Modify by: Liu and Chen, 2000)

+0.28 °C/decade

slide6

Tibet

  • Himalaya
  • Karakorum

High Altitude CEOP Stations

Map of the New CEOP Reference Sites

Measurements

- Surface meterology and radiation

- Heat and CO2 fluxes

- Soil temperature and soil moisture

- Tower meteorology

slide7

Summit

Zugspitze-Hohenpeissenberg

Jungfraujoch

Sonnblick

Mt Cimone

Izana

Assekrem

Mauna Loa

Mt.Kenya

High Altitude GAW Stations

80

80

40

40

Mt Waliguan

Pyramid-Everest

0

0

40

40

160

80

0

80

160

March 2005

South Pole

Courtesy of L. Jalkanen

slide8

GOAL:

To study multi-scale variability of water and energy cycles in high elevation areas, while improving observations, modeling and data mangement

  • Specific OBJECTIVES:
  • Promote coordinated mechanisms to favor the sharing of harmonic, high-quality hydrological and meteo-climatic datasets
  • Promote long-termmonitoring of meteo-climatic parameters in high elevation areas and analyze environmental responses to global changes.
  • Improve understanding of the aerosols impact on water cycle.
  • Improve hydro-climate forecasting capabilities at high elevations to optimize benefits to society, particularly in water resources management.

Urdukas AWS

(4,000 m a.s.l.)

Pyramid AWS

(5,050 m a.s.l.)

Development of a global network of high elevation monitoring stations, including but not limited to CEOP RS

slide9

MAHASRI

Regional foci

CEOP-HE is a component of ‘regional focus’ within the CEOP of GEWEX, under WCRP

Regional Hydroclimatic Projetcs

(RHPs)

CEOP-HE within

WCRP/GEWEX/CEOP

Courtesy of V. Ryabinin

various scales to treat in ceop he
Various scales to treat in CEOP-HE

Space

HE/Mountain ranges

Global Warming

Monsoon

Aerosol

Basin Meso- 100 km 1000 km sub-continent

Snow

cover

Severe

weather

Weathering

Permafrost

Run-off

Convection

Avalanche,

Flooding

Glacier

Hour Day Week Season Year Y-to-Y Decadal

Time

Courtesy of K.Ueno, modified by G.Tartari

way of implementing actions in he
Way of implementing actions in HE

Courtesy of K.Ueno, modified by G.Tartari

Technical issues

Research topics

Strategy

Priority

Action plans

Regional

Global

Local

Observation, analysis, modeling, data acquisition, distribution, assimilation

Cross-cutting (CEOP, GEWEX, WCRP, ABC, …)

Application

slide12

Implementation strategy: main actions planned

  • Print the HE-Science Plan.
  • Develop of HE-Network based on representative high-elevation stations worldwide (max 50).
  • Identification of reference stations to be proposed to insert within CEOP network.
  • Divulgate CEOP-HE activity to the international scientific community (GEWEX, AGU, EGU, or other international conferences).
  • Establish research groups focused on specific areas where reference sites already exist, like Himalaya/Tibet/Karakorum mountain ranges.
slide13

Implementation strategy:

preliminary dissemination program in 2009

DRAFT

thanks for your attention
Thanks for your attention

Gianni Tartari

tartari@irsa.cnr.it

Ev-K2-CNR Committe

Via San Bernardino, 145

24126 Bergamo, Italy

www.evk2cnr.org

Water Research Institute

National Research Council

Località Occhiate

20052 Brugherio, Milan

www.irsa.cnr.it