Estimating Urban CO2 Fluxes at High Spatial …Thank you! Title PowerPoint Presentation Author...
Transcript of Estimating Urban CO2 Fluxes at High Spatial …Thank you! Title PowerPoint Presentation Author...
Estimating Urban CO2 Fluxes at High Spatial Resolution from
In Situ ObservationsAlexis Shusterman, UC Berkeley
[email protected]://beacon.berkeley.edu
BErkeleyAtmosphericCO2ObservationNetwork2km
~25 independent air quality sensing “nodes” on museum and
elementary school rooftops
465m
PI: Ron Cohen
from Choi et al. 2014
observationsmodeled fit1σ variation range
Particulate Matter(co-emitted with CO2)
BEACO2N Data Set 2013
Sites: Laurel Korematsu HeadRoyceBurckhalter Kaiser ODowd ElCerritoPrescott CollegePrep StLiz NOakland
Performance Picarro G2301 Vaisala GMP343Accuracy ± 1 ppm ± 7 ppmPrecision ± < 0.2 ppm (5s) ± 3 ppm (2s)
Drift ± 6 ppm/yr ± 8 ppm/yrWeight 58 lbs 0.8 lbsPrice $50,000-100,000 $3,000
strike (Oct 21)working days
3 PM 8 PM10 AM5 AM
Daily CO2 Levels at Port of Oakland“Last week’s work stoppagebegan before dawn on October21, as roughly 100 owner-operators set up demonstrationsaround the port […]
The shutdown lifted whenlongshoremen returned to theirposts for the 7:00 p.m. shift thatevening.”
-OaklandNorth, UC Berkeley Grad. School of Journalism
VaisalaGMP343 NDIR
CO2 Sensor
Shinyei GroveParticulate
Sensor
Electrochemical O3, NO, NO2 & CO
Sensors