Award Abstract # 0531464
Micrometeors and Their Interaction with the Atmosphere: A Comprehensive Study Using the Arecibo and Jicamarca Observatories

NSF Org: AGS
Division of Atmospheric and Geospace Sciences
Recipient: NORTHWEST RESEARCH ASSOCIATES, INC.
Initial Amendment Date: June 2, 2005
Latest Amendment Date: April 28, 2008
Award Number: 0531464
Award Instrument: Continuing Grant
Program Manager: Farzad Kamalabadi
AGS  Division of Atmospheric and Geospace Sciences
GEO  Directorate for Geosciences
Start Date: March 1, 2005
End Date: July 31, 2009 (Estimated)
Total Intended Award Amount: $462,099.00
Total Awarded Amount to Date: $462,099.00
Funds Obligated to Date: FY 2004 = $66,675.00
FY 2005 = $95,988.00
FY 2006 = $99,895.00
FY 2007 = $99,994.00
FY 2008 = $99,547.00
History of Investigator:
  • Diego Janches (Principal Investigator)
     diego.janches@nasa.gov
Recipient Sponsored Research Office: NorthWest Research Associates, Incorporated
 1100 NE 45TH ST, STE 500
 SEATTLE
 WA  US  98105-4696
(206)556-8151
Sponsor Congressional District: 07
Primary Place of Performance: NorthWest Research Associates, Incorporated
 1100 NE 45TH ST, STE 500
 SEATTLE
 WA  US  98105-4696
Primary Place of Performance
Congressional District:		 07
Unique Entity Identifier (UEI): CBP3W28RNZB3
Parent UEI:
NSF Program(s): AERONOMY
Primary Program Source: app-0104 
app-0105 
app-0106 
app-0107 
01000809DB NSF RESEARCH & RELATED ACTIVIT
Program Reference Code(s): 0000, OTHR
Program Element Code(s): 152100
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.050

ABSTRACT

A comprehensive assay of the micrometeor flux using extant and new radar head-echo measurements quantifies the amount and temporal variability of dust deposition into the earth's middle atmosphere. The data are used to construct a meteor input function model that will be useful to studies of ionospheric E-region layering, sporadic-E formation, and to the communications disturbances associated with those phenomena. Additionally, the information concerning meteor trajectories prior to earth-encounter are important for understanding dust in the inner solar system, planetary formation and evolution, and evolution of the asteroid belt.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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(Showing: 1 - 10 of 17)
Sparks, J. J., D. janches, M.J. Nicolls and C.J. Heinselman "Seasonal and diurnal variability of the meteor flux at high latitude observed using PFISR" J. Atmos. Solar. Terr. Phys. , v.71 , 2009 , p.644 10.1016/j.jastp.2008.08.009
Lau, E.M., S.K. Avery, J.P. Avery, D. Janches, S.E. Palo, N.A. Makarov "Statistical characterization of the meteor distribution at the South Pole using VHF" Radio Sci. , v.41 , 2006 , p.RS4007 10.1029/2005RS003247
Sparks, J.J. and D. Janches "Latitudinal dependence of the variability of the micrometeor altitude distribution" Geophysical Research Letters , v.36 , 2009 , p.L12105 10.1029/2009GL038485
De la Peña, S., S.K. Avery, J.P. Avery, E.M. Lau and D. Janches "Wind measurements of MLT region using the Platteville, CO MEDAC 50 MHz meteor radar" J. Atmos. Solar Terr. Phys. , v.67 , 2005 , p.1211
D. Janches and M.J. Nicolls "Diurnal variability of the gyro resonance line observed with the Arecibo incoherent scatter" Geophysical Research Letters , v.34 , 2007 , p.L01103 10.1029/2006GL028510
D. Janches, S. Close and J.T. Fentzke "A comparison of detection sensitivity between ALTAIR and Arecibo meteor observations: Can" Icarus , v.193/1 , 2007 , p.105 10.1016/j.icarus.2007.08.022
Dyrud, L; K. Denney; J. Urbina; D. Janches; E. Kudeki; S. Franke "The meteor flux: It depends how you look, Earth Moon and Planets" Earth, Moon and Planets , v.95 , 2005 , p.8
Dyrud, L.P. and D. Janches "Modeling the meteor head-echo using Arecibo radar observations" J. Geophys. Res.-Space Physics , v.70 , 2008 , p.1621 10.1016/j.jastp.2008.06.016
Fentzke, J. T., D. Janches, and J.J. Sparks "Latitudinal and Seasonal variability of the micrometeor input function" J. Atmos. Solar. Terr. Phys. , v.71 , 2009 , p.653 10.1016/j.jastp.2008.07.015
Friedman, J.S. and D. Janches "Special issue of meteor and the mesopause" J. Atmos. Solar Terr. Phys. , v.67 , 2005 , p.1157
Janches, C. Heinselman, D., J.L. Chau, A. Chandran and R.F. Woodman "Modeling the Global Micrometeor Input Function in the Upper Atmosphere Observed by High" J. Geophys. Res , v.111 , 2006 , p.A07317 10.1029/2006JA011628
(Showing: 1 - 10 of 17)

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