کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4426852 1309137 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Field comparison of disjunct and conventional eddy covariance techniques for trace gas flux measurements
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Field comparison of disjunct and conventional eddy covariance techniques for trace gas flux measurements
چکیده انگلیسی

A field intercomparison experiment of the disjunct eddy covariance (DEC) and the conventional eddy covariance (EC) techniques was conducted over a grass field. The half-hourly water vapor fluxes measured by the DEC were within the estimated uncertainty from the fluxes measured by the EC. On the average there was a slight overestimation (<10%) of the fluxes measured by the DEC during the day and underestimation during the night as compared to the fluxes measured by the EC. As this bias does not appear in the simulated DEC measurements it is likely to be due to instrumental problems. The insensitivity of the quality of the fluxes measured by the DEC method to the deficiencies in the gas analysis shows the robustness of this new approach for measuring the surface-atmosphere exchange of trace gases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 152, Issue 3, April 2008, Pages 630–635
نویسندگان
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