Transcom PBL Depth experiment telecon of 22 Feb 2013.
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00:00 - 00:15 Introduction, Andy Jacobson00:15 - 00:25 Characteristics of the IGRA radiosonde dataset, Dian Seidel00:25 - 00:35 Covariance of surface CO2 fluxes with BLH, Scott Denning00:35 - 01:00 DiscussionDiscussion topics include:1. Sharing of results among participants2. Next steps for analysis3. How to handle regional models? Free-running simulations?4. New simulations to quantify large-scale vertical transport?
Characteristics of the Radiosonde-Based Mixing Height DatasetTranscomTelecon 22 February 2013
NOAA Air Resources Lab, College Park, Maryland
Yehui (Ally) Zhang
Nanjing University of Information Science and Technology
see http://www.arl.noaa.gov/CVCAnalysis_Pubs.php for related papers
Changes in Surface-Based Inversion Characteristics
at Jan Mayen, Norway (71N, 9W), 1963-2009
effect of 1983 increase in vertical resolution of soundings
(probably due to automated data processing)
1983 Changes In
11 → 16 levels
16 → 25 %
456 → 131 m
2.5 → 1.2 K
Similar data inhomogeneities probably
also affect MH estimates at many stations.
JJA minus DJF
Covariance of Simulated NEE with Observed PBL Depth
~ mMol m-2 s-1 m-1
= mMol m-3 s-1
= mMol m-3 (0.0224 m3 Mol-1) s-1
= mMol Mol-1 s-1 (86400 s day-1)(365/12)
= ppm per month