International Workshop of the Israel Science Foundation

GLOBAL DIMMING AND BRIGHTENING

Ein Gedi, Israel, February 10-14, 2008

PROGRAM

 

 

 

 

 

 

 

 

                                                                             

                                                            

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sunday, February 10, 2008

 

All day

Arrivals or Participation in Pre-Workshop Tours  

5:00-6:00 p.m.

Registration, Distribution of Workshop Material and Get-together

6:30 p.m.

 

Dinner, Followed by Get-together

8:30 p.m.

 

Lecture: “An overview of The Dead Sea: Creation, Uniqueness and Declination” by Eli Raz, Geologist.

 

 

 

 

 

 

 

 

 

 

Monday, February 11, 2008

 

7-8:00 a.m.

Breakfast

8:30 a.m.

Welcome: Workshop Overview/Objectives - Shabtai Cohen

8:40 a.m.

Keynote Address: Overview of Global Dimming and Brightening (GDB) - Observations, Causes, Consequences, and Hypotheses - V. Ramanathan

 

Session 1. Measurements of the Components of GDB-Chair: Rolph Philipona

 

 

  9:10

 

Observed Decadal Variations in Solar Radiation During the Last 80 Years, their Causes and Consequences - Atsumu Ohmura

  9:25

 

The Measurement Science Perspective on Climate - B. Carol Johnson

  9:40

Investigating the Causes of Solar Radiation Trends: an Example from the Antarctic Georg von Neumayer BSRN site - Charles Long

  9:55

18 years of high-precision solar radiation monitoring at Sede Boqer – David Faiman 

  10:10

Discussion of Presentations-led by Chair

 

 

10:25 a.m.

Coffee Break

 

Session 1. Satellite Measurement Issues-Chair: Daniel Rosenfeld

 10:45

Satellite-Based Estimation of Radiation: Challenges &

Recent Accomplishments - Norman Loeb

 11:05

 

Application of Satellite Radiative Fluxes in the Context of

GDB Issues - Rachel Pinker

 11:20

GDB from Earthshine Measurements - Enric Palle

 11:35

Discussion of Presentations-led by Chair

 

 

Session 1. Aerosol trends and properties-Chair: Ilan Koren

 

 11:50

Aerosol Long-Term Trends Observed from AERONET - Brent Holben

 12:10

Aerosols from MODIS and MISR: Towards a Better

Characterization of Aerosol Impact on GDB - Mian Chin

 12:25

Absorption by organic aerosols - Yinon Rudich

 12:40

Discussion of Presentation-led by Chair

Conclusions - Session 1-Chair: Beate Liepert

 

 1:00 p.m.

Lunch

 2:20 p.m.

Session 2. The Interactions Between Trends in Aerosols, Clouds, Precipitation and

                   Radiation-Chair: Joel Norris

 

 

  2:20

 

 Improved AVHRR Aerosol & Cloud Climatology - Mitch Goldberg

  2:40

 

Cloud cover trends and solar dimming and brightening over Europe and East Asia - Joel Norris

  3:00

MODIS-Based Latitudinal Distributions of Cloud Optical Thickness and their Trends - Pavel Kishcha

 

  3:15

Discussion of Presentations-led by Chair

 

 

 3:30-4:00 p.m.

Coffee Break

 

Session 2. The Interactions Between Trends in Aerosols, Clouds, Precipitation and 

                  Radiation- Chair: Martin Wild

 4:00

Interaction between aerosols & cloud cover through precipitation processes

& feedback to the aerosols, from marine stratocumulus to tropical deep convection - Daniel Rosenfeld

 4:15

 

Assessment of Global Dimming and Brightening with the GOCART Model - Thomas Diehl

 4:30

Clouds & Aerosols: Impact on GDB - Ilan Koren

 4:45

 5:00

Discussion of Presentations-led by Chair

Daily Summary-Chair: Yinon Rudich

 
 5:30 p.m.  Sessions Conclude for the day
 6:00 p.m. Setting up posters *
 7:00 p.m.  Supper
 8:00 p.m. Poster session with refreshments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* Note: poster presenters will be able to set up their posters on Sunday or Monday evening. Posters will be displayed until Wednesday morning, when they must be taken down. Mr. Avraham Grava will be available to help with posters.

 

Tuesday, February 12, 2008

 

7:30-8:30 a.m.

Breakfast

8:30 a.m.

Session 3. Global Dimming: Implications for understanding Present and Future Climates,

and Influences on Hydrology, Agriculture, and Land Use: Chair: Garik Gutman

 

 

  8:30

 

The Relative Importance of Short and Long Wave Radiative Forcing at the Earth's Surface to air Temperature Change; Evidence from a 120 Year Measurement Series - Gerald Stanhill

  8:50

 

Aerosol & Cloud Effects on Solar Brightening & Rapid Warming since

1980's - Rolf Philipona

  9:05

GDB: Observations, GCM Modeling & impacts - Martin Wild

  9:25

Quantification of the Effect of Urbanization on Solar Dimming - Pinhas Alpert

 

  9:40

Discussion of Presentations-led by Chair

 

 

10:00 a.m.

Coffee Break

 

 10:30

Recent Observed and Simulated Trends in Cloudiness and Solar Radiation over the Iberian Peninsula and their Relation with Changes in Circulation Patterns - Josep Calbo

 10:45

 

Solar Dimming and Soil Moisture Trend - Alan Robock

 11:00

Dimming, Crop Water use and Productivity in Semi-arid Environments: Lessons from Shading Experiments - Shabtai Cohen

 11:15

Concluding Talk: GDB and Global Warming - Warren Wiscombe

 11:35

Discussion of Presentations-led by Chair

 

12:00 p.m.

Lunch followed by a visit to the Dead Sea
  5:30-6:00 p.m.  Poster viewing
 7:00 p.m.  Supper
 8:00 p.m. Poster session with refreshments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wednesday, February 13, 2008

 

7:00 a.m.

Breakfast and hike

9:30 a.m.

Coffee

10:00 a.m.

Formation and explanation of Breakout Groups: - G. Ohring, Chair

 

1. Measurements of the components of dimming and brightening

 

2. Interactions between trends in aerosols, clouds, precipitation and radiation

 

 

3. Implications for understanding present and future climates, and other environmental Impacts

10:15 a.m.

Breakout Groups Meet and Discuss Issues:

 

1. Current state of knowledge

 

2. Gaps in knowledge

 

3. Research recommendations to fill gaps

12:20 p.m.

Lunch

1:30 p.m.

Breakout Groups Meet and prepare presentation

2:40 p.m.

Breakout Groups Report to Plenary - G. Ohring, Chair

 

 2:40  

1.  Measurements of the components of dimming and

     brightening - reporter

 3:05  

2.  Interactions between trends in aerosols, clouds, precipitation and radiation - reporter

 3:30  

3.  Implications for understanding present and future climates, and other environmental Impacts - reporter

 

4:00-4:30 p.m.

Coffee Break

4:30 pm

Breakout Groups Meet - Discussions and Writing conclusions and recommendations

7:00 p.m.

Supper

8:30 p.m.

Lecture: “Sailing on the Dead Sea in Ancient Times” by Dr. Gideon Hadas, Head archaeologist of the Ein Gedi excavations.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thursday, February 14, 2008

 

7:00 a.m.

Breakfast

8:00 a.m.

Breakout Groups Meet-Discussions and Rough Draft of Report

10:00-10:30

Coffee Break

 

Breakout Groups Final Report to Plenary - G. Ohring, Chair

 10:30  

1. Measurements of the components of dimming and

    brightening

 11:00 

2. Interactions between trends in aerosols, clouds,

     precipitation and radiation

 11:30  

3. Implications for understanding present and future climates,

    and other environmental Impacts

 

12:00 p.m.

Wrap-up, Deadlines for Input to Final Report, and Adjourn

12:30 p.m.

Lunch