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Park Falls, Wisconsin, United States
| Site Latitude | 45° 56' 42.36" N (45.94510 °N) | |||||
| Site Longitude | 90° 16' 23.52" W (-90.27320 °E) | |||||
| Site Elevation | 472.0 masl | |||||
| Site code | LEF | |||||
| Dataset | co2_lef_tower-insitu_1_allvalid-396magl_assim (GLOBALVIEW identifier LEF_01C3) | |||||
| Assimilated | Yes | |||||
| Selection scheme | all valid hourly data from 396 magl (highest) intake | |||||
| Data provider | Arlyn Andrews, NOAA ESRL GMD, 325 Broadway GMD-1, Boulder, CO 80305-3328, United States, and Peter Bakwin, United States | |||||
| Partner(s) | Ken Davis, Department of Meteorology, The Pennsylvania State University, University Park, PA 16802, United States, and Ankur Desai, United States, and Dan Baumann, United States | |||||
| Laboratory |
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| 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). Any observations that CarbonTracker can not assimilate successfully are shown as filled red 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. Also shown in the lower panel is the imposed model-data mismatch ("MDM", orange lines), which in part defines the rejection criterion (see documentation). Any model first guess value which is more than three times the MDM away from zero, after accounting for potential adjustments to the simulated value due to optimizing fluxes, is rejected by the optimization system. Rejected values, if there are any, are shown with filled red circles.