SORCE's Past, Present, and Future Role
in Earth Science Research

Science Meeting 2008

La Posada de Santa Fe Resort & Spa
Santa Fe, New Mexico
February 5-7, 2008

Important Deadlines:

  • Dec. 18th, 2007: Abstracts Due (Deadline Extended!)
  • Jan. 4, 2008: Registration Deadline -->
  • Jan. 28, 2008: Cancellation/Refund Deadline

We are pleased to announce the 2008 SORCE Science Meeting, motivated by the NASA/EOS Solar Radiation and Climate Experiment (SORCE). The agenda for this interactive meeting consists of invited and contributed oral and poster presentations concerning variations in the Sun's radiation and in the Earth environment. The primary focus of the 2008 Science Team Meeting is the utilization of improved solar irradiance measurements and models, such as being developed by SORCE, to help advance climate and atmospheric models, in conjunction with ongoing Earth Science measurements. We encourage your participation and hope that you will share this announcement with colleagues.

Acknowledging SORCE's 5th anniversary, the meeting's theme and title is SORCE's Past, Present, and Future Role in Earth Science Research. The meeting will focus on solar irradiance variability and the modeled and measured response to this variability of Earth's atmosphere and climate. Of particular interest are models that incorporate the physical processes thought to facilitate the Sun-Earth connection. Coupled with accurate solar and climate measurements, these models are critical to determining and understanding climate sensitivities to solar forcing.

Key questions to be addressed include:

  • What is the present state of knowledge of the total solar irradiance (TSI) and solar spectral irradiance (SSI) in the ultraviolet, visible, and near infrared spectral ranges?
  • How have the key radiative, photochemical and dynamical processes affecting Earth's atmosphere and ozone, changed over the past few decades, in comparison with other influences?
  • How much of the stratospheric heating by the solar ultraviolet radiation couples to the lower atmosphere and surface?
  • How do the water cycle and cloud coverage respond to solar forcing, and how do these processes affect the long-term climate?
  • How can drivers in the Sun causing solar cycle variations be better quantified to estimate past and future solar irradiance changes, such is in times like the Maunder Minimum?

Call for Papers

Call for Papers
The agenda for this interactive meeting consists of invited and contributed oral and poster presentations concerning variations in the Sun's radiation and in the Earth environment. Please submit all abstracts by Dec. 4, 2007, using the on-line Abstract Form. Please limit your abstract to 250 words and let us know what session you would like to be included in and whether you prefer an oral or poster presentation. Abstracts can also be e-mailed to Vanessa George


  1. Variability of the Solar Irradiance Over the Solar Cycle — How variable is the Sun observed to be, and how does solar variability depend on wavelength?
  2. Atmospheric Models, Processes, and Solar Irradiance — Using results from recent atmospheric measurements and associated model improvements, what are the physical processes that modulate the middle atmosphere and vertical coupling with lower atmospheric layers?
  3. Models of Solar Processes Affecting Climate — What solar activity features cause observed irradiance changes, how do these features evolve on long time scales, and might such activity be forecasted?
  4. Climate Models, Processes, and Solar Irradiance — How do current global climate models parameterize responses to solar variations and how do these parameterizations differ among the various models, especially in accounting for the apparent sensitivity of Earth's hydrological cycle to solar forcing.

Presentation Guidelines:

Oral and poster presentation guidelines are available here.

Following the 2008 science meeting, we hope to share as many presentations as possible with others via the meeting website. To do this, we will collect presentations during the meeting. We understand that presenters may be reluctant to share parts of their presentations for proprietary reasons. Please feel free to edit your presentation for the SORCE website, including only what you are comfortable sharing.

Meeting Agenda
download .PDF of Meeting Agenda

Download .PDF of Presentation Abstracts
Download .PDF of Posters

Monday, February 4
5:30-6:30 pm

Welcoming Reception - 5th SORCE Science Meeting

HelloMonday, February 4, 5:30 p.m.
Montana Ballroom Foyer, La Posada

Join us for a special reception to kick-off the 5th Annual SORCE Meeting. Beverage tickets (wine, beer, soda) will be provided in your registration packet.

Tuesday, February 5

Session 1 — Variability of the Solar Irradiance Over the Solar Cycle
We will review total and spectral solar irradiance variations over the 11-year solar cycle and discuss potential causes and indicators of this variability.

Chair:  Gary Rottman, LASP, University of Colorado

8:30 - 8:40 amWelcome (Montana Ballroom)
8:40 - 9:20 am

Keynote:  Tom Woods, LASP, University of Colorado
What We’ve Learned from SORCE – Solar Cycle Maximum to Minimum
view intro.PDF|| view lecture .PDF

9:20 - 9:45 am

Judith Lean (Invited), Naval Research Laboratory, Washington, DC
Comparison of Solar Irradiance Variability Models with SORCE Observations
view .PDF

9:45 - 10:10 am

Greg Kopp (Invited), LASP, University of Colorado
The History and Future of TSI and SSI Measurements
view .PDF

10:10 - 10:40 am Break
10:40 - 11:05 am

Gérard Thuillier (Invited), Service d’Aéronomie du CNRS, France
Space Station SOLSPEC Investigations:  Measurements of the Absolute Spectral Irradiance from 165 to 3080 nm On-Board SOLAR
view .PDF

11:05 - 11:20 am

Steven Dewitte, Royal Meteorological Institute of Belgium, Brussels
Measured Total Solar Irradiance Cycle Variability:  Status at the End of Cycle 23
 view .PDF

11:20 - 11:35 am

Claus Fröhlich, Physikalisch-Meteorologisches Observatorium Davos, Switzerland
TSI Variation:  What can we Learn from the Last Three Solar Cycles?
view .PDF

11:35 - 12:00 pm

Gary Chapman (Invited), San Fernando Observatory, California State University
Long-Term Ground-Based TSI Measurements
view .PDF

12:00 pm Lunch - provided at La Posada Resort
1:00 - 1:15 pm

Alexander Ruzmaikin, Jet Propulsion Laboratory, Cal. Institute of Technology
Solar Irradiance:  Modes of Variation
view .PDF

1:15 - 1:30 pm

Matt DeLand, Science Systems and Applications Inc. (SSAI), MD
Comparison of Long-Term Solar UV Irradiance Data Set and Proxy Model Data
view .PDF

1:30 - 1:45 pm

Yvonne Unruh, Imperial College, London, UK
Irradiance Variations on Rotational Timescales: A Comparison Between SORCE Measurements and the SATIRE Model
view .PDF

1:45 - 2:10 pm

Doug Biesecker (Invited), NOAA, Space Weather Prediction Center, Boulder, CO
Predictions of the Solar Cycle, Past and Present
view .PDF

Session 2 — Atmospheric Models, Processes, and Solar Irradiance
We will discuss the influence of solar cycle irradiance variability in atmospheric models and chemical and dynamical processes related to stratospheric ozone variations.

Chair:  Erik Richard, LASP, University of Colorado

2:10 - 2:50 pm

Keynote:  Michael King, NASA Goddard Space Flight Center, Greenbelt, MD
NASA’s Earth Observations of the Global Environment:  Our Changing Planet and the View from Space 
view .PDF

2:50 - 3:15 pm

David Lary (Invited), NASA Goddard Space Flight Center, Greenbelt, MD
Long-Term Multi-Dataset Analysis
view .PDF

3:15 - 3:45 pm


3:45 - 4:00 pm

Kiyotaka Shibata, Meteorological Research Inst. (MRI), Tsukuba, Japan
Temperature and Ozone Response to the 11-Year Solar Cycle in the Tropical Stratosphere as Revealed by Ensemble Simulation of Chemistry-Climate Model
view .PDF

4:00 - 6:00 pm Poster Session – Introduction (Marty Snow) and Reception
Posters and Abstracts are below

Wednesday, February 6

Session 2 — Atmospheric Models, Processes, and Solar Irradiance (continued)
Chair:  Erik Richard, LASP, University of Colorado

8:30 - 9:10 am

Keynote:  Mark Schoeberl, NASA Goddard Space Flight Center, Greenbelt, MD
The Aura Mission

9:10 - 9:35 am

Paul Newman (Invited), NASA Goddard Space Flight Center, Greenbelt, MD
Estimating When the Antarctic Ozone Hole Will Recover
view .PDF

9:35 - 10:00 am

Jay Mace (Invited), University of Utah, Salt Lake City
A Description of Hydrometeor Layer Occurrence Statistics Derived from the First Year of Merged CloudSat and CALIPSO Data
view .PDF

10:00 - 10:25 am

Terry Nathan (Invited), University of California, Davis
On the Connection Between Solar Spectral Irradiance, Planetary Wave Drag and the Zonal-Mean Circulation
view .PDF

10:25 - 11:00 am


Session 3.  Models of Solar Processes Affecting Climate
We will discuss the solar physical processes that cause irradiance variations over time periods of years to centuries.

Chair:  Greg Kopp, LASP, University of Colorado

11:00 - 11:40 am

Keynote:  Mark Miesch, High Altitude Observatory, NCAR, Boulder, CO
Processes that Cause Solar Irradiance Variability
view .PDF

11:40 - 1:00 pm

Lunch – On your own

1:00 – 1:25 pm

Karel Schrijver (Invited), Lockheed Martin ATC, Palo Alto, CA
Magnetic Flux Transport Modeling
view .PDF

1:25 - 1:50 pm

Sami Solanki (Invited), Max Planck Institute, Lindau, Germany
Solar Irradiance and Activity Reconstructions on Timescales up to Millennia
view .PDF

1:50 - 2:15 pm

Juan Fontenla (Invited), LASP, University of Colorado
Modeling the Spectral and Total Irradiance from Solar Atmospheric Structures
view .PDF

2:15 - 2:30 pm

Mark Rast, LASP, University of Colorado
Latitudinal Variation in the Solar Intensity During the Decline of Cycle 23
view .PDF

2:30 - 3:00 pm


3:00 - 3:25 pm

David Hathaway (Invited), NASA Marshall Space Flight Center, Huntsville, AL
Estimating the Next Solar Cycle  
view .PDF

3:25 - 4:05 pm

Keynote:  Tom Ayres, Ctr. for Astrophysics & Space Astronomy, Univ. of Colorado
How Star-Like is the Sun; How Solar-Like are the Stars?  
view .PDF

4:05 - 4:20 pm Jeffrey Hall, Lowell Observatory, Flagstaff, AZ
Brightness Variations of Solar Analogs during Activity Cycles and Grand Minima
view .PDF

Session 4.  Climate Models, Processes, and Solar Irradiance 
We will talk about the influence of solar cycle irradiance variability on climate change and in climate models.
Chair: Jerry Harder, LASP, University of Colorado

4:20 - 5:00 pm

Keynote:  Caspar Ammann, National Center for Atmospheric Research, Boulder, CO
IPCC Report and Possible Solar Contributions to Climate Change
view .PDF

5:00 - 5:15 pm

Robert Cahalan, NASA, Goddard Space Flight Center, Greenbelt, MD
Modeling the Wavelength and Time Dependence of Solar Forcing of Earth’s Atmosphere and Ocean Mixed Layer
view .PDF

6:30 - 9:30 pm

Science Dinner – La Casa Sena

Thursday, February 7
Session 4.  Climate Models, Processes, and Solar Irradiance (cont.)

Chair: Bob Cahalan, NASA, Goddard Space Flight Center

8:30 - 9:10 am

Keynote:  Tom Crowley, Duke University
Fire vs. Fire:  Do Volcanoes or Solar Variability Contribute More to Past Climate Change?
view .PDF

9:10 - 9:35 am

David Rind (Invited), NASA GISS, New York, NY
Exploring the Tropospheric Response to Solar Forcing
view .PDF

9:35 - 10:00 am

Gavin Schmidt (Invited), NASA Goddard Institute for Space Studies (GISS), NY
Modeling Solar Cycle Impacts on Tropical Hydrology and Proxy Records
view .PDF

10:00 - 10:20 am Break
10:20 - 10:35 am

Richard Keen, University of Colorado, Boulder
Climate Forcing Since 1960:  What Does the Moon Have to Say?
view .PDF

10:35 - 11:00 am

Dave Young (Invited), NASA Langley Research Center, Hampton, VA
CLARREO Overview
view .PDF

11:00 - 11:25 am

Steve Volz (Invited), NASA Headquarters, Washington, DC
NASA ES New Mission Concepts for Future
view .PDF

11:25 - 11:45 am


Special Events

Poster Session Reception
Poster Session

Tuesday, February 5, 4:00–6:00 p.m.

Following a brief overview of the 2008 posters, everyone is invited to wander through the poster area. To recognize a few local culinary specialties, we will sample appetizers with a Santa Fe flare. Beverage tickets (wine, beer, soda) will be provided in your registration packet.


Using SORCE Data in the College Classroom
Douglas Allen [], Dordt College, Sioux Center, IA.
view poster
TSI and Ground-Based Data: What Can be Learned?
Gary Chapman, Angie Cookson [], and Dora Preminger, San
Fernando Observatory, California State University, Northridge.
view poster
Spectral Decomposition of the TSI Record Using the SORCE TIM and SIM Instruments
Jerry Harder [], Erik Richard, Juan Fontenla, Peter
Pilewskie, and Greg Kopp, LASP, University of Colorado, Boulder.
view poster
The Relationship between Sunspots and the Variability of the Solar Corona
Dora Preminger [] and Gary Chapman, San Fernando Observatory, California State University, Northridge.
view poster
Ultraviolet SSI Variability from two SOLSTICEs
Martin Snow [], William McClintock, and Tom Woods, LASP, University of Colorado, Boulder.
view poster
Solar EUV Observations from the NOAA GOES 13 Satellite
Rodney Viereck [], NOAA Space Weather Prediction Center, Boulder, CO; Don McMullin, Naval Research Laboratory, Washington; Doug Strickland, Computational Physics, Inc, Springfield, VA.
view poster
XUV Photometer System (XPS): Improved Solar Irradiance Algorithm Using CHIANTI Spectral Models
Thomas N. Woods [], Phillip C. Chamberlin, and W. K. Peterson, LASP, University of Colorado, Boulder; R. R. Meier and Phil G. Richards, George Mason University, Fairfax, VA; Douglas J. Strickland Computational Physics, Inc., Springfield, VA; and Gang LU, Liying Qian, and Stanley C. Solomon, High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO.
view poster
Solar Spectral Irradiance Variability in the Near-Infrared and Correlations to the Variability of Total Solar Irradiance during the Declining Phase of Solar Cycle 23
Erik C. Richard, Jerald W. Harder, Juan Fontenla, Peter Pilewskie, Greg Kopp, and Tom Woods, LASP, University of Colorado, Boulder.
view poster
Absolute Optical Power and Irradiance Comparisons with SORCE/TIM and Glory/TIM Instruments
David Harber [], Karl Heuerman, Ginger Drake, and Greg Kopp, LASP, University of Colorado, Boulder.
view poster
Michelson Doppler Imager Observations of the Solar Radius over Cycle 23
Rock I. Bush [], Solar Physics Group, Stanford University, California; J. Kuhn, Institute for Astronomy, University of Hawaii, Honolulu; and M. Emilio, Universidade Estadual de Ponta Grossa, Parana, Brazil.
Applying Relativity to Earth Climate Data The Damhsa Theory Signs of the
Inflationary Universe

Sheila A. Lynch [], Northeast Advanced Vehicle Consortium (NAVC), Boston, MA.
view poster
Modeling Lunar Borehole Temperature in order to Reconstruct Historical TSI and Estimate Surface Temperature in Permanently Shadowed Regions
Guoyong Wen [], NASA, Goddard Space Flight Center & UMBC; Robert F. Cahalan, NASA, Goddard Space Flight Center; Hiroko Miyahara, University of Tokyo, Japan; and Atsumu Ohmura, Institute for Atmospheric and Climate Sciences, Zurich, Switzerland.
view poster
SORCE Solar Irradiance Data Products
Doug Lindholm [], Christopher Pankratz, Barry Knapp, Randy Meisner, Juan Fontenla, Jerald Harder, William McClintock, Greg Kopp, Martin Snow, and Tom Woods, LASP, University of Colorado, Boulder.
view poster
The LASP Interactive Solar IRradiance Datacenter (LISIRD)
Christopher Pankratz [], D. M. Lindholm, M. Snow, B. Knapp, D. Woodraska, B. Templeman, T. N. Woods, F. G. Eparvier, J. Fontenla, J. Harder, and W. E. McClintock, LASP, University of Colorado, Boulder.
view poster
The Role of Solar Forcing in the Tropical Circulation
Jae N. Lee [], Stony Brook University, New York; Drew
Shindell, NASA GISS and Columbia University; and Sultan Hameed, Stony Brook University.
view poster
Reconstructing TSI from Heliospheric Magnetic Field as Deduced byMcCracken from Cosmic Ray Modulation
Leif Svalgaard [], ETK, Houston, TX.
view poster

SORCE Science Meeting Dinner

Wednesday, February 6, 7:00 p.m.
La Casa Sena

PatioThere will be a Science Meeting Dinner on Wednesday, Feb. 6, for all attendees and guests at the La Casa Sena.

In the heart of Old Santa Fe at historic Sena Plaza, this traditional adobe family structure was built in 1867. The home later became La Casa Sena, and now serves contemporary foods with a Southwestern twist - also described as northern New Mexican cuisine with a continental flare. La Casa Sena is a local favorite, maintaining its house specialties through the years, as well as offering an award-winning wine list. The warm ambience and delicious food is complimented by the restaurant's outstanding collection of 20th century Santa Fe art.

DinnerTickets: $42. Reservations are required.

Please sign up and pay for this event on the Registration Form. Everyone is encouraged to attend, and friends and family are welcome. Ticket price includes appetizer, entrée, accompaniments, dessert, non-alcoholic beverage, gratuity, and tax.

Meeting Registration

Pre-Registration Fee (before Jan. 4): $240
Registration Fee (after Jan. 4): $260

Registration fees include the meeting facilities, continental breakfast, and break refreshments. The University of Colorado's Conference Services are handling our credit card processing via their secure on-line system ( We encourage you to use this on-line system, which will provide you with all confirmation information. For payment by check, please use the Registration Form (pdf) and mail your check to the address on the form.

Cancellation and refund deadline: Monday, January 28, 2008. We apologize for any inconvenience, but this deadline is due to the commitments we need to make to businesses providing us with their services. We will do our best to accommodate any special situations. Conference Services will be handling any late credit card registration additions (i.e. dinner) and any credit card refunds.

Lodge / Meeting SiteLodging / Meeting Site

La Posada de Santa Fe Resort & Spa
Santa Fe, New Mexico

Reservation Deadline: January 4, 2008


La Posada de Santa Fe Resort & Spa is located in downtown Santa Fe, just minutes from the city's historic Plaza, wonderful art galleries, and extraordinary restaurants. Nestled on six lush, landscaped acres, La Posada has retained its traditional Southwestern charm offering intimate ambience and adobe-style guestrooms, in addition to superior conference services and amenities including original works of art from some of Santa Fe's most prestigious galleries. Featured in Architectural Digest, National Geographic Traveler, Sunset Magazine, and other impressive publications, La Posada de Santa Fe Resort & Spa is the top choice for seasoned travelers. Visit La Posada's website at

SORCE meeting attendees must make their own hotel reservations. A block of 55 rooms has been reserved. The group rate of $145 applies pre- and post-meeting dates based on availability. Please make your reservation early if you plan to come early or stay over.

To make your reservation, call 1-800-727-5276, ext. 7686 (for the SORCE group), or 505-954-9686, between 8 a.m. and 4 p.m. Mountain Time, Monday — Friday, before the January 4 deadline and refer to the SORCE Science Meeting to get the $145 special rate. There is also a $15 valet (only option) parking fee each day, so you may want to consider other options than driving. You can also make your reservation by e-mailing or faxing 505-982-5474. La Posada has a 72-hour cancellation policy. The local hotel tax is currently 14.625% and an additional $10 resort fee is applied to each room night.

We have reserved a limited number of rooms based on expected attendance, so please make your reservation as early as possible. This will allow us to increase the block of rooms if necessary, assuming there are still rooms available. (They will honor the group rate if we need to increase the block within a reasonable time frame.) If you encounter any difficulties making reservations or if the SORCE group rate is unavailable, please contact

Transportation / Directions

Getting to Santa Fe, New Mexico

Please check the La Posada website for detailed transportation directions —


The closest major airport is Albuquerque International (ABQ), located 70 miles south of Santa Fe. Some commuter airlines (American Airlines, Delta Airlines, and Great Lakes Aviation) fly directly into the regional Santa Fe Airport. We encourage you to make airline reservations early.

Ground Transportation

Shuttle service through Sandia Shuttle Express is available between the Albuquerque International Airport and Santa Fe, about an hour and fifteen minute drive. The trip is $45 for a roundtrip or $25 for a one-way trip. Please check scheduling information and make reservations in advance by visiting the Sandia Shuttle website:, or call 1-888-775-5696 or 505-474-5696. From the Santa Fe Airport, you can catch the Sandia Shuttle, taxi, or rent a car to get to La Posada.

Once in Santa Fe, getting around is easy. Downtown and the surrounding historic districts are compact and most conveniently traveled by foot. Of course, rental cars are available at the Albuquerque Airport and in Santa Fe. Taxi service is offered by Capitol City Cab at 505-438-0000.


The La Posada website provides detailed driving instructions from the Albuquerque Airport (~1 hour), Santa Fe Airport (20 minutes), and from Taos, New Mexico (90 minutes). See for driving directions.


New Mexico

Downtown Santa Fe

Santa Fe, New Mexico


Santa FeSanta Fe is magnificently rich in history, beauty, tradition, and nature. This vibrant city is a landmark of spectacular artwork, world-class culinary delights, and gentle adobe architecture that catches and holds the beautiful desert light. Artists began coming to this high desert paradise in the 1920's, attracted by the pristine landscape and the sweeping views of the Sandia Mountain. Today visitors enjoy the true essence of Santa Fe as they explore the many museums, internationally recognized galleries, and unique shops offering handmade items that reflect regional culture and style. You too will enjoy the diverse cultural offerings, dramatic sunsets, and the serene ambiance.

PetroglyphsOutside of Santa Fe, the day-trip possibilities are endless including options to explore ancient civilization ruins, visit traditional American Indian pueblos, or hike around a collapsed crater of a long-dormant volcano. If you've never been to this part of the west, don't miss this opportunity! You will be energized by Santa Fe's scenic beauty and relaxed pace.

A Santa Fe visitor's packet is available from the Convention and Visitors Bureau at 800-777-2489 or


Santa FeNestled in the picturesque Sangre de Cristo Mountains, Santa Fe averages more than 300 days of sunshine per year. Santa Fe is 7,000 feet above sea level, and the February daily average high is 48 degrees and the low is 24 degrees. Generally, Santa Fe receives six to eight snowfalls per year (17.5 inches total) between November and April. If we are lucky we will experience their typical February sunny days and cold nights. Before packing, the following website could be helpful — Santa Fe's zip code is 87501.

Special Needs

LASP is committed to making this Science Meeting accessible to all participants. If you require special arrangements, please contact Vanessa George.

Contact Information

Vanessa George
phone 303-492-5486

Previous Meeting Summaries

For detailed summaries of past SORCE meetings (2002 - 2006), please read the final published articles (view the links on the left menu, or visit We anticipate that the Santa Fe meeting will be just as exciting!