Post on 09-Jul-2020
Estimating Urban CO2 Fluxes at High Spatial Resolution from
In Situ ObservationsAlexis Shusterman, UC Berkeley
shusterman.alexis@berkeley.eduhttp://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