Estevan Point, British Columbia, Canada
|Site Latitude||49° 22' 58.80" N (49.38300 °N)|
|Site Longitude||126° 32' 38.76" W (-126.54410 °E)|
|Site Elevation||7.0 masl|
|Dataset||co2_esp_surface-flask_2_representative (GLOBALVIEW identifier ESP_02D0)|
|Assimilated||Yes, but showing unassimilated subset Switch to assimilated subset|
|Selection scheme||Air samples are generally collected with winds from the marine sector, such that sampled air masses are free of local terrestrial influences and are representative of the background atmosphere. Where necessary, flags are applied to data that are not representative of either the background atmosphere or of the sampled air mass.|
|Data provider||Ray Langenfelds, CSIRO Oceans and Atmosphere - Climate Science Centre, Private Bag 1 (street address: 107-121 Station St.), Aspendale, Victoria 3195, Australia, and Paul Krummel, CSIRO Oceans and Atmosphere - Climate Science Centre, Private Bag 1 (street address: 107-121 Station St.), Aspendale, Victoria 3195, Australia, and Zoe Loh, CSIRO Oceans and Atmosphere - Climate Science Centre, Private Bag 1 (street address: 107-121 Station St.), Aspendale, Victoria 3195, Australia|
|Partner(s)||No partner information available.|
|Download these data via ObsPack.|
(a) Time series of CO2 mole fractions, both simulated and observed, at this CarbonTracker observation site. In the top panel, measured mole fractions (open black circles) are plotted along with CarbonTracker simulated values (filled light blue circles).
(b) The time series of model residuals--the difference between the simulated and measured mole fractions--shown with dark green filled circles. These residuals should be uncorrelated in time, unbiased (i.e., have a mean of zero), and distributed normally.
(c) Summary statistics for model residuals from to . Residuals are defined as simluated values minus observed values. "Bias" is the mean of the residuals; "std. dev." is the standard deviation, and RMSE is root-mean-square error. All quantities are in ppm of CO2. The time period over which these quantities are computed is set by the graphs (a) and (b).
(d) Seasonal histograms of residuals