Physics
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.471..165m&link_type=abstract
In: 15th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 28 - 31 May 2001, Biarritz, France. Ed.:
Physics
Earth Mesosphere, Noctilucent Clouds
Scientific paper
The NASA-sponsored DROPPS (Distribution and Role of Particles in the Polar Summer Mesosphere) Program, conducted in coordination with the MIDAS Campaign at the Andøya Rocket Range, Norway, was our most recent opportunity to measure the electrical environment and related aerosol properties during observed PMSE (polar mesosphere summer echo) and NLC (noctilucent cloud) envents. For both rocket flights, electron density bite-outs of about two orders of magnitude were measured in PMSE/NLC regions. Coincidentally, the blunt probes indicated the presence of impacting negatively charged aerosols in the region of strong PMSEs during the first DROPPS flight. Very small mobility values measured by the Gerdien condenser are suggestive of positively charged, subvisible particles that appear to be more prevalent at PMSE/NLC altitudes.
Croskey Charles L.
Goldberg Richard A.
Mitchell John D.
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