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| VIRGINIA COAST RESERVE LONG-TERM ECOLOGICAL RESEARCH |
Site BRNV, Month JAN, Year 1991 |
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| Day of Month | Precip (mm) | Max Temp. oC | Min Temp. oC | Mean Temp. oC | Wind Speed (m/s) | Wind Dir (deg.) | Vapor Press. (mb) | Solar Rad. KJ/m2 | PAR uE/m2 |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.00 | 9 | -2 | 3.4 | 1.05 | 11 | 2.33 | 7756 | 11007 |
| 2 | 9.20 | 9 | 3 | 7.0 | 1.25 | 335 | 3.75 | 1647 | 2806 |
| 3 | 0.00 | 14 | 0 | 5.5 | 0.44 | 57 | 2.87 | 7380 | 11695 |
| 4 | 0.00 | 6 | -3 | 3.1 | 1.27 | 345 | 2.00 | 8323 | 12095 |
| 5 | 0.00 | 8 | -4 | 2.6 | 0.53 | 3 | 2.19 | 1413 | 2467 |
| 6 | 0.00 | 13 | 1 | 6.7 | 0.54 | 177 | 2.99 | 9066 | 14062 |
| 7 | 15.90 | 8 | 3 | 5.6 | 2.07 | 38 | 2.83 | 723 | 1449 |
| 8 | 29.30 | 9 | 1 | 4.5 | 2.23 | 26 | 2.62 | 1558 | 2873 |
| 9 | 24.70 | 11 | 5 | 7.4 | 3.28 | 341 | 3.38 | 2944 | 4905 |
| 10 | 0.00 | 10 | 1 | 5.1 | 0.90 | 345 | 2.54 | 9841 | 14891 |
| 11 | 24.80 | 15 | 4 | 9.6 | 1.84 | 94 | 4.01 | 641 | 1484 |
| 12 | 3.90 | 17 | 8 | 10.1 | 1.37 | 294 | 4.25 | 3485 | 5777 |
| 13 | 1.30 | 8 | -1 | 3.7 | 2.42 | 334 | 2.23 | 5934 | 9037 |
| 14 | 0.00 | 9 | -5 | 2.2 | 1.36 | 222 | 2.10 | 10099 | 14671 |
| 15 | 0.00 | 14 | 0 | 7.5 | 1.16 | 221 | 2.93 | 11464 | 16905 |
| 16 | 6.50 | 22 | 8 | 14.8 | 1.31 | 186 | 6.15 | 3414 | 5433 |
| 17 | 0.00 | 14 | 0 | 8.5 | 1.56 | 299 | 2.86 | 11367 | 17295 |
| 18 | 0.00 | 11 | -2 | 4.9 | 1.10 | 289 | 2.35 | 11688 | 17887 |
| 19 | 0.00 | 11 | -0 | 6.1 | 1.20 | 235 | 2.28 | 5436 | 8657 |
| 20 | 9.70 | 14 | 3 | 8.1 | 1.19 | 312 | 3.23 | 11411 | 17569 |
| 21 | 0.00 | 10 | 0 | 6.7 | 2.67 | 315 | 2.35 | 9495 | 14338 |
| 22 | 0.00 | 0 | -9 | -3.9 | 2.49 | 342 | 1.13 | 10016 | 14792 |
| 23 | 0.00 | 6 | -9 | -1.0 | 1.62 | 219 | 1.48 | 12299 | 18558 |
| 24 | 0.00 | 7 | 2 | 5.0 | 1.19 | 252 | 2.02 | 3490 | 5667 |
| 25 | 0.00 | 4 | -8 | -1.6 | 1.45 | 349 | 1.34 | 12799 | 19373 |
| 26 | 0.00 | 7 | -9 | -1.3 | 0.73 | 180 | 1.42 | 12632 | 19463 |
| 27 | 0.00 | 8 | -3 | 3.9 | 1.08 | 172 | 1.88 | 12363 | 19084 |
| 28 | 0.00 | 13 | 0 | 7.9 | 1.00 | 229 | 2.43 | 6108 | 9329 |
| 29 | 0.00 | 13 | -0 | 6.5 | 0.76 | 69 | 3.17 | 7420 | 11710 |
| 30 | 0.80 | 18 | 6 | 11.9 | 1.38 | 211 | 4.67 | 1940 | 3330 |
| 31 | 0.00 | 19 | 1 | 9.1 | 2.85 | 314 | 3.15 | 9688 | 14770 |
| Mon. Tot. Precip. 126.1 mm | Mean wind vel. 1.462 m/s |
| Mon. Mean Temp. 5.5 deg. C | Wind dir 321 deg |
| Mean Max. Temp. 10.9 deg. C | Mean Min. Temp. -0.3 deg. C |
| Extreme Max. Temp 22.2 deg. C | Mean vapor press 2.74 mb |
| Extreme Min. Temp -9.4 deg. C | Total Solar Rad 223836 KJ/sq. m |
| Total photosyn. 343375 uEin/sq.m |
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| Daily Total Precipitation (mm) |
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| Hourly Mean Temperatures (deg. C) |
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| Hourly Max Min and Mean Temperatures (deg. C) |
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| Wind Speed (m/s) |
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| Frequency of Wind Direction |
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| Wind Vectors (circle=1.5 m/s) |
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| Relative Humidity (percent) |
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| Photosynthetically Active Radiation (micro-einsteins per m squared) |
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| Hourly Photosynthetically Active Radiation (micro-einsteins per m squared) |
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| Solar Radiation (KiloJoules per Meter Squared) |
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| Hourly Solar Radiation (KiloJoules per Meter Squared) |
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| Hours of Station Operation |
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| Data Logger Battery Voltage and Internal Logger Temperature |