SAGE III Ozone Loss and Validation Experiment II

Project Description
The SOLVE II Mission is an international field campaign designed to
acquire correlative data needed to validate the
Meteor-3M/Stratospheric Aerosol and Gas Experiment (SAGE) III
satellite mission. The field campaign will also acquire correlative
measurements with atmospheric chemistry instruments onboard the
ADEOS-II and ENVISAT satellite missions to enhance ozone comparison
and loss studies utilizing these data sets. Measurements will be
made during the Arctic winter using the NASA DC-8 aircraft, balloon
platforms, and ground-based instruments. These activities will take
place in close collaboration with the European Validation of
International Satellites and Study of Ozone Loss (VINTERSOL) campaign,
which will include flights of the DLR Falcon and Russian Geophysica
M55 aircraft, other balloon platforms and ground-based instruments.

SOLVE-II is co-sponsored by NASA's Upper Atmosphere Research Program
(UARP), Atmospheric Effects of Aviation Project (AEAP), Atmospheric
Chemistry Modeling and Analysis Program (ACMAP), and Earth Observing
System (EOS) of NASA's Earth Science Enterprise (ESE). VINTERSOL is
sponsored by the European Commission.

Dr. Michael Kurylo and Dr. Phil DeCola are the SOLVE II Program
Scientists. Dr. Mark Schoeberl and Dr. Paul Newman are the SOLVE II
DC-8 Project Scientists, and Mr. Michael Craig is the SOVLE II Project

SOLVE II has five basic science objectives.
These objectives are:

Measurement of the polar ozone loss rate in early to mid-winter.
Relative contributions to low ozone levels from interannual variations
in ozone transport and photochemistry will be quantified.

The understanding of polar stratospheric clouds (PSC's). The
composition of PSC's and the role they play in the interactions
between chlorine and nitrogen reservoir species will be examined.

The study of photochemical processes. The seasonal evolution of
chemical processes, in particular the activation and deactivation of
chlorine, and their impact on ozone loss will be observed.

The measurement of polar air transport and dynamics. The initial
state of polar stratospheric air will be defined and the exchange of
this air between the polar vortex and the mid-latitudes will be
observed. This will allow a better understanding of the effect of
transport on the evolution of the ozone. It will also lead to better
predictions of the sensitivity of polar air to jet engine exhaust from
current and future aircraft.

SAGE III instrument validation. Ozone, aerosol, water vapor, and NO2
measurements from the DC-8 will be compared to SAGE III instrument
measurements to prove the accuracy of satellite observations.

For further information, see: