Research Article
A Comparison of Three Gap Filling Techniques for Eddy Covariance Net Carbon Fluxes in Short Vegetation Ecosystems
Table 5
The sum relative error (SRE) for NEE in different gap levels, at marsh, rice, and soybean site.
| | Gap % | Daytime | Nighttime ( corrected) | All time | | MDV % | LUT % | NLR % | MDV % | LUT % | NLR % | MDV % | LUT % | NLR % |
| Marsh site | 35 | 2.83 | 0.85 | 4.92 | na(a) | na | na | 2.83 | 0.85 | 4.92 | 45 | −3.61 | 0.15 | −0.70 | 2.51 | 1.36 | 0.83 | −4.46 | −0.02 | −0.92 | 55 | −4.98 | −3.60 | −2.33 | −1.46 | 2.54 | 2.49 | −5.93 | −5.23 | −3.67 | 65 | −1.74 | 0.82 | 3.48 | 4.60 | 5.50 | 6.11 | −3.67 | −0.61 | 2.66 |
| Rice site | 35 | 0.05 | 3.37 | 2.28 | 4.38 | 2.84 | 2.43 | −0.28 | 3.41 | 2.27 | 45 | 0.08 | −0.81 | −1.59 | 3.97 | −2.27 | 1.79 | −0.33 | −0.66 | −1.94 | 55 | 0.58 | 1.38 | 2.73 | −5.67 | −1.38 | 0.60 | 1.52 | 1.79 | 3.05 | 65 | −1.40 | −4.89 | −5.68 | −0.69 | 1.29 | 0.08 | −1.51 | −5.86 | −6.59 |
| Soybean site | 35 | 2.21 | −1.67 | 7.01 | −22.99 | −9.94 | −9.28 | 5.16 | −0.37 | 9.58 | 45 | 1.82 | −1.75 | 2.20 | 1.57 | 4.09 | 2.94 | 1.92 | −4.04 | 1.91 | 55 | 5.80 | 3.56 | 10.48 | 1.47 | 0.16 | 1.02 | 8.49 | 5.67 | 16.36 | 65 | 1.74 | 1.97 | 10.11 | −2.88 | 0.27 | −2.29 | 4.93 | 3.6 | 20.28 |
|
|
No measurements were available due to large gaps.
|