Autonomous measurements and global modeling of mineral aerosols
description
Transcript of Autonomous measurements and global modeling of mineral aerosols
Autonomous measurements and global modeling of mineral aerosols
Amato EvanScripps Institution of Oceanography, University of
California San Diego, USA
Key Questions
1. What are the spatial, temporal, and microphysical characteristics of dust over California, and what are the primary source regions for these mineral aerosols?
2. Does dust emission from remote sources change on interannual and longer time scales, and what is the effect on rainfall over California?
Autonomous Measurements
CARAGA
OPC
MPL
Deposition, surface conc. & size, vertical structure
Deposition, surface conc. & sizeAutonomous
California
1. 20 sites w/CARAGA & particle counter
2. 4 sites would also include MPL
3. Possible to keep cost in neighborhood of $1M for equipment
Dust-Monitoring Network
Long-Term Variability:Over-Land Dust Detection with AVHRR?
Long-Term Variability:Sub to decadal scale records
Mono Lake Tufa
Owens Lake Lacustrine
Stromatolites
Long-Term Variability:20th Century numerical experiments
Modeling dust in a GCM…
…is not so easy to do!