Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsa41b0729m&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SA41B-0729
Physics
2411 Electric Fields (2712), 2494 Instruments And Techniques, 3304 Atmospheric Electricity
Scientific paper
Accurate in-situ vector electric field measurements are important for studying the dynamics of mesospheric phenomenon. Previous rocket-borne electric field experiments have reported large vertical electric fields (>400 V/m) in Polar Mesosphere Summer Echo (PMSE) and noctilucent cloud (NCL) layers. DROPPS 1 was launched into one of the strongest PMSE events of the 1999 season and Holzworth et al (GRL, 28, 1435, 2001) report large potential perturbations resulted from the rocket wake, while the environmental fields were small (<30 V/m). Here we present a detailed look at the DROPPS 1 rocket environment in the PMSE. Using measurements from the twelve independent high impedance Langmuir probes, we reconstruct the potential structure of the rocket wake. The electromagnetic wake was asymmetric, but similar to the expected aerodynamic wake, and potentials as high as 10 volts were seen on probes within one meter of the vehicle while it was in the PMSE region.
Holzworth Robert H.
Marcoline F. V.
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