Research Personnel

1

• CReSIS
• The Ohio State University
• Ohio State University is responsible for five
  primary tasks
• Developing regional-scale geophysical data sets
  from satellite data
• Developing new techniques for measuring the
  physical properties of
• firn and ice
• Extending glaciological theory that incorporates
  new observations
• of the glacier bed provided by CReSIS
• development of a modeling system to predict the
  surface height
• of the Greenland and Antarctic ice sheets
• Develop new, web-based courses in Polar Science
• OSU will also work closely with KU engineers to
  identify science requirements
• and engineering requirements that drive system
  development. OSU
• will also help design field experiments that
  validate system performance.
• Along with developing new courses in Polar
  Science, OSU is working
• With local industry to develop outreach
  opportunities

Analysis of Surface Velocity Fields

• Research Personnel
• K. Jezek, task leader and Cresis OSU P.I.
• E. Mosley-Thompson, Ice core analysis and
  interpretation
• L. Thompson, Climate from ice cores
• D. Bromwich, Polar meteorology
• C. Landis, Education and Outreach
• V. Zagorodnov, Firn sampling technology
• P.-N. Lin, ice core stable isotopes / chemistry
• K. Farness, SAR analysis
• S. Mather, Altimetry and optical data products
• Lesheng Bai, Polar meteorology
• 3 graduate students

• Schedule
• (Detailed schedules are
  provided with each task)
• Year 1 - Accomplishments
• Data compilation (Envisat Acquisitions)
• Science requirements on radar and in situ
  technologies
• In situ firn sampling equipment design and
  preliminary fabrication
• Web cast lectures to team members and visit to
  ECSU
• Year 2
• WRF coupled to standard Community Land Model
  (CLM)
• Prepare derived products (for example, surface
  velocity maps)
• Firn sampling technology test
• IPY Coordination of Antarctic Snapshot
  Proposal
• Year 3
• Use glacier bed theory to help refine field
  campaign strategy
• Prepare satellite optical maps of Greenland
  prior to field experiments
• Field campaign 1
• Year 4
• CLM validation
• Polar Science Seminar (web based)

2
Analysis of Surface Velocity Field and
Velocity Gradients The Ohio State
University This task will measure and compile the
surface velocity fields for the polar ice
sheets. Velocity fields are already available
for portions of the Antarctic from the MAMM
project. Additional Radarsat InSAR data were
for interior Antarctica during AMM-1 and new
data about the perimeter have been collected
through 2005. Velocity gradients and derived
field will be analyzed using a proposed variant
of the conventional force budget technique.
The results will be used in comparison with
Cresis imaging radar data to investigate
properties of the glacial bed. In addition, the
task will develop maps of Cresis study
sites using optical satellite imagery and
satellite altimeter systems. As part of this
task, the PI will visit ECSU to give
presentations on Polar Science and to interact
with students and staff. Two web-based Polar
Science Seminars will also be offered.
Analysis of Surface Velocity Fields

• Research Personnel
• K. Jezek, task leader and Cresis OSU P.I.
• K. Farness, InSAR processing
• S. Mather, DEM preparation and site maps
  creation
• 1 graduate student will be involved with theory
  development
• and comparison with Cresis data

• Schedule
• Year 1 - Accomplishments
• Assemble available SAR Data and available
  derived velocities
• Assemble available DEM Data (Ekholm, Bamber,
  IceSAT)
• Initial development of complete 3-d force
  theory
• Year 2
• Host 2 ECSU students
• Complete integrated 200 m DEM of Greenland
• Create SAR mosaics and begin InSAR processing
  (Envisat)
• Apply 3-d force theory to Antarctic MAMM data
• IPY Coordination of Antarctic Snapshot Proposal
• Year 3
• Finish ascending InSAR Processing begin
  descending InSAR
• Begin theory application to the Greenland
  Ascending data
• Prepare satellite optical maps of Greenland
  prior to field experiments
• Year 4
• Finish Descending InSAR and merge velocity
  products
• Compare force theory results to Greenland in
  situ experiments
• Develop optical maps of Antarctic field sites

3
High Resolution Analysis of the Physical and
Chemical Properties of Snow and Firn using
Multiple Technologies The Ohio State
University Ice Core Paleoclimate Group
High resolution, in situ measurements of the
physical and chemical properties of firn and ice,
along with annual snow accumulation are essential
for correct interpretation of airborne and
satellite-borne remote sensing data. Density is
one of the most difficult properties to measure
and is best evaluated in situ. At least three
different tools will be constructed, tested, and
deployed to measure density with high vertical
resolution and increased precision over current
methods. Near-surface densities that change
rapidly with depth will be given special
attention. Ideally the speedograph will be
calibrated so that many shallow (lt 20 meter)
profiles can be measured quickly in a region.
This is critical as density can be highly
variable over small distances, especially in
regions where the snow facies are not dry and the
degree of melt and refreezing is laterally
variable.
Speedograph penetration is f(density)
Schedule

• Years 1 and 2 Design, Fabrication, Testing
• High Resolution Density Setup (HIRESD)
• Fabrication of the ICAS (Ice Core Analysis
  System)
• - Fabrication of Speedograph
• Testing all three devices with firn cores on
  hand at OSU
• Inter-lab calibration with Japan (Gamma Rays)
  or AWI (X-rays)
• Year 3 Greenland field testing, equipment
  modification
• Field testing HIRDES and Speedograph
• Make refinements needed as a result of field
  tests
• Return of some cores for further validation by
  repeat measurements in
• the cold room and laboratory analyses dust,
  d18O and major ions
• Year 4 Greenland field work equipment
  modification
• - Characterization of in situ density at
  multiple
• field locations in Greenland
• Return of some cores for further validation by
  repeat measurements
• in the cold room and laboratory analyses
  dust, d18O and major ions
• - Refine equipment as needed refurbish as
  needed
• Year 5 In situ density and other physical
  properties at Greenland
• and Antarctic field locations to support
  CReSIS objectives

Research Personnel
Ellen Mosley-Thompson Victor Zagorodnov Lonnie G.
Thompson Ping-nan Lin 1 graduate student involved
in analysis of physical properties of firn / ice
4
Modeling System for Simulating the Elevation
Change of the Ice Sheets over Greenland and
Antarctica The development of a modeling system
to predict the surface height of the Greenland
and Antarctic ice sheets is proposed to
complement and help interpret airborne and
satellite-based measurements of ice sheet
elevation change. The modeling system will be
built on the polar version of the newly available
Weather Research and Forecasting (WRF) model that
is presently being developed by the Polar
Meteorology Group of the Byrd Polar Research
Center. The Community Land Model (CLM) that is
scheduled to be coupled to WRF in 2006 by NCAR
will be adapted to work over polar ice sheets.
For the dry snow zone, blowing snow effects as
well as densification of accumulated snow will be
considered. For the melting areas, refreezing,
runoff, and the effects of accumulated snow on
the underlying ice will be simulated. It is
anticipated that the coupled atmosphere-land
surface model will be run continuously with
assimilation of observations keeping the model
atmosphere close to reality while the land
surface albedo, snow cover on land, vegetation
description, and sea ice coverage will be updated
regularly from satellite observations. The
modeling results will be compared and contrasted
with available satellite and airborne
measurements of ice sheet elevation change,
taking advantage of area averaging of both to
enhance accuracy.
Year 2 Polar WRF coupled to the standard version
of the Community Land Model (CLM) will be
evaluated over Greenland and Antarctica. Year
3 CLM adapted and validated for the dry snow
zone of ice sheets. A densification model for
snow compression will be implemented into CLM. A
separate blowing snow model will be optimized and
coupled to CLM. Year 4 CLM adapted and
validated for the melting areas to consider
refreezing, runoff, and the effects of
accumulated snow on the underlying ice. Year
5 Coupled Polar WRF-CLM-Blowing snow simulations
of the surface elevation change of Greenland and
Antarctica for 2000-2008. Variations tested
against available satellite and airborne
measurements of ice sheet elevation change and
analyzed in relation to the climate controls.
Research Personnel David H. Bromwich Lesheng
Bai Graduate student
5
Our vision is to educate students about the
fundamental principles of earth science and the
unique role of the polar regions in earth
systems. Our objective is to train students who
will be ableto critically and creatively apply
these principles in their chosen careers. ST
outreach will be integrated into regular
BPRC activities that include annual visits by
primary and secondary school students from
Central Ohio. BPRC also hosts student groups
from local colleges and teacher organizations.
BPRC is working with McGraw Hill Company to
increase access to polar science information.
Education and Outreach

• Schedule
• Year 1 - Accomplishments
• ECSU/HINU presentations
• Continue discussions with McGraw Hill and
  production of K-12 material
• Jezek web cast lecture
• Numerous visits by K-12 students, teachers,
  parents, college students and teachers
• Proposal to Battelle to host 3 day-long climate
  change session
• Submit proposal to GLOBE RFP (energy budget
  focus)
• Invited talk at ECSU and HINU
• 2 undergrad presentations at OSU Denman Research
  Forum
• Year 2
• ECSU summer students at OSU
• Lonnie Thompson web-cast lecture
• BETHA Program
• Develop additional courses (at OSU and partner
  institutions) for UG/G track
• Produce educational material in collaboration
  with McGraw Hill
• K-12 Teacher Workshop/Lesson Development
• Web Enhancement to make educational materials
  available

• Education and Outreach Team
• Carol Landis Educator
• All Senior OSU Faculty and Staff
• BPRC Administrative Staff
• One graduate student (year 2)