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Ozone layer and UV radiation in a changing climate evaluated during IPY (ORACLE-O3) Project within the IPY cluster Clouds, aerosols and atmospheric chemistry. Peter von der Gathen AWI Niels Larsen DMI. Background.

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slide1

Ozone layer and UV radiation in a changing climate evaluated during IPY(ORACLE-O3)Project within the IPY cluster Clouds, aerosols and atmospheric chemistry

Peter von der Gathen

AWI

Niels Larsen

DMI

slide2

Background

Nearly 1000 Expressions of Intents (EoI) were submitted to the IPY Joint Committee early 2005

Recommendations for clustering of EoI’s

Within the cluster ”Clouds, aerosols, and atmospheric chemistry”

15 EoI’s have been identified, related to research on the stratosphere and UV under climate

changing conditions

The Oracle-O3 cluster has contributions/interests from

117 researchers from

67 research institutions in

22 countries

Science programme, data management and outreach

1) Ozone loss (detection and impact on UV radiation,

2) PSC (polar stratospheric clouds) and cirrus,

3) Atmospheric chemistry,

4) UV radiation,

5) Ozone and climate change and feedback

6) Data management

7) Education, outreach and communication.

slide4

Funding and coordination

  • Draft Preparation Form for Proposed IPY Activity
    • CO-PI’s: Peter von der Gathen, AWI and Niels Larsen, DMI
  • National IPY Committees
  • National IPY research programmes
  • International coordination - (COST action ?)
  • Science programme, data management and outreach
  • 1) Ozone loss (detection and impact on UV radiation
  • 2) PSC (polar stratospheric clouds) and cirrus
  • 3) Atmospheric chemistry
  • 4) UV radiation
  • Ozone and climate change and feedback
  • Data management
  • 7) Education, outreach and communication.
slide5

Quantification of polar ozone losses in both hemispheres

Match technique

Simultaneous satellite measurements of ozone and reactive chlorine and bromine

Envisat

ACE

Aura

Odin

slide6

Investigations of

Polar Stratospheric Clouds

Solid particle formation

Denitrification

Trace gas measurements

Calipso lidar

PSC detection

SAF LearJet

H2O

M55-Geophysica

Particle and trace gas measurements

DLR-Falcon

O3-aerosol lidar

Stratospheric balloons

Particle measurenets

H2O

BAe-146

Tandem flights

with M55

GB lidars

slide7

Ground-based measurements

Rio Gallegos

Ushuaia

Marambio

Belgrano

Instruments operating in the IR, UV/Vis and microwave, Lidars, O3-sondes

Seasonal and long-term variability

Ozone, water vapour, numerous key ozone-related trace gases in the stratosphere

Tropospheric pollutants, greenhouse gases, and biomass burning

UV-, visible, and infrared radiation and ground/sea/ice albedo, AOD

slide8

Modelling

Chemistry-transport models

Chemistry-climate models

Integration of field data and process

studies in a modelling framework

Chemical assimilation

Changes in SH vortex dynamics

Recovery of the ozone layer

slide9

UV-effect studies:

Epidemiological study of personal UV exposure.

Deepen our understanding of the role of the variability

of light and UV radiation on primary production and human population.

Variability and trends of the relevant biologically effective doses in polar areas, and their sensitivity to changes in snow and cloud cover.

Explain differences in phytoplankton biomass, melatonin and vitamin D levels as a function of the variability of relevant biologically weighted doses.

Establish foundations for future data products on UV and visible radiation.

slide10

Collaboration

  • National IPY research programmes
    • NERC IPY special fund
    • NERC Antarctic Funding Initiative
    • Italian Programme for Antarctic Research (PNRA)
    • German IPY programme under way
  • Link to EU- research
  • European Commission funded Integrated Project
  • Stratosphere-Climate Links With Emphasis On The UTLS (SCOUT-O3)
    • Management structure
    • Data management data protocol, data base
    • Conferences