1. Ground Based Measurements of Aerosols and Precipitation CalWater2 Operations Planning Meeting – 5 November 2014

2. UCSD/SIO Mobile Laboratory Field-Deployable Platform 20’ x 7’ Double Axle Box Trailer GVWR: 7000 lbs. Power: 100 A (220 V) Max Aerosols Composition (d = 0.1 – 3 μm): Aerosol Time-of-Flight Mass Spectrometers (ATOFMS, x2) Size Distributions (d = 0.01 – 20 μm): Scanning Mobility Particle Sizer, Aerodynamic Particle Sizer Light Absorption/Black Carbon: 7-wavelength Aethalometer Cloud Condensation Nuclei (CCN): Single Column CCN Counter, Condensation Particle Counter PM 2.5 Mass: Beta Attenuation Monitor (BAM) Others: Continuous Flow Diffusion Chamber (Ice Nuclei; DeMott, Colo. State. Univ.) Aerosol Ion Chromatography, Aerosol and CCN Capillary Electrophoresis (Roberts, SIO) Trace Gases Carbon Monoxide (CO), Nitrogen Oxides (NOx), Ozone (O 3 ), Sulfur Dioxide (SO 2 )

3. Bodega Bay UC Davis Bodega Marine Laboratory BBY SPD MPI LHM STA CZD [Google Maps] Elevation: <10 m MSL Locale: Coastal, active laboratory Access: Lodging onsite Communications: via Bodega Marine Lab Notable features: 1.Strong contribution from marine aerosol 2.Central Valley influence via Petaluma Gap 3.Coastal barrier jet formation 4.Local burning (campfires), especially on weekends can complicate regional scale signal [February – March]

4. Elevation: <10 m MSL Locale: Coastal, active laboratory Access: Lodging onsite Communications: via Bodega Marine Lab Notable features: 1.Strong contribution from marine aerosol 2.Central Valley influence via Petaluma Gap 3.Coastal barrier jet formation 4.Local burning (campfires), especially on weekends can complicate regional scale signal Bodega Bay UC Davis Bodega Marine Laboratory [February – March] Ambient Particle Sources

5. Elevation: <10 m MSL Locale: Coastal, active laboratory Access: Lodging onsite Communications: via Bodega Marine Lab Notable features: 1.Strong contribution from marine aerosol 2.Central Valley influence via Petaluma Gap 3.Coastal barrier jet formation 4.Local burning (campfires), especially on weekends can complicate regional scale signal Bodega Bay UC Davis Bodega Marine Laboratory [February – March] Getting There: 1 day Packing at UCSD 1 day shipping to BBY 3-4 days unpack and calibrate on-site Operations Jan 15 – March 10 (G-1 overlap) 2 day spin-down and unpack 1 day return shipping Targets: Leave UCSD Jan 10, Leave field March 12

6. Ambient Aerosols During Storm(s) ATOFMS LVN (250 nm < D a < 3000 nm) continuously sampled aerosol particles in ambient air before during and after Feb 26 and Feb 28 rain events.

7. 2/28/2014 2/26/2014 Pb Ti TiO Li Ca (CaO) 2 Ca 2 O Na Al K K Na Fe Al 2/28/2014 Chemical Analysis of Precipitation Residues

8. CFDC-pCVI-ATOFMS Daily Operations: Daily “0 th ” order cal for ATOFMS, Weekly 1 st order cal for ATOFMS 4-hour limit for CFDC operation, 1-2 hour de-icing: 2 x daily Sizing and Gas phase instruments run nearly continuously Precip and ambient filter sampling as identified by forecast. Weekly 2 hour downtime for BBY generator test (7 am) Morning forecast discussions will guide discretionary activities

9. Adding Value with Co-Location Sugar Pine Dam, 2011 Bodega Bay, 2014 AerosolS-PROF DRUM Aerosol 449 MHz + RASS Precip HMT-West Profilers

10. Logistical Considerations C. McCluskey, Colo. State Target is to Overlap with G-1 Operations (Jan 15 – March 10), Overflights during storms while precipitation samples are being collected Ground site operations are esp. sensitive to aerosol forecasts. Aerosol and chemistry forecasters (Martin, Creamean) will be located in BBY and coordinate with MCC BBY Datasets can be uploaded real-time to SDSC, except ATOFMS? Are There BBY measurements which will be useful for other CW-2 scientists and planners?

11. Thank You! Thoughts for Future: LIDAR, Cloud Radar Microwave Sounding Unit Hydrometeor Size Distributions “IMPROVE” Style particulate mass analysis Automated Biosampling

13. Mariposa- Yosemite Airport Mariposa, CA BBY SPD MPI LHM STA CZD [Google Maps] Elevation: 670 m MSL Locale: Rural, active road and air traffic Access: Short drive to lodging Communications: Generally available Notable features: 1.Airport and truck traffic influenced signal 2.SBJ appeared to influence aerosol (like SPD) 3.Not strongly coupled to Central Valley Strong local sources of particles make this site not a good option for CalWater