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| VIRGINIA COAST RESERVE LONG-TERM ECOLOGICAL RESEARCH |
Site PHCK, Month APR, Year 1998 |
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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 | 3.05 | 22 | 17 | 19.3 | 2.82 | 167 | 20.10 | 6953 | 13625 |
| 2 | 0.00 | 26 | 14 | 20.9 | 3.45 | 185 | 13.29 | 22678 | 40673 |
| 3 | 0.00 | 17 | 8 | 13.7 | 1.25 | 66 | 8.52 | 16636 | 30667 |
| 4 | 36.58 | 13 | 6 | 8.8 | 3.35 | 46 | 9.90 | 1763 | 3913 |
| 5 | 1.02 | 12 | 3 | 7.2 | 2.97 | 297 | 6.73 | 14894 | 26530 |
| 6 | 0.00 | 16 | 3 | 9.5 | 1.80 | 254 | 6.73 | 23910 | 43639 |
| 7 | 0.00 | 19 | 2 | 11.0 | 0.44 | 125 | 9.34 | 19748 | 37311 |
| 8 | 0.00 | 28 | 9 | 19.5 | 2.82 | 174 | 16.93 | 19821 | 37603 |
| 9 | 6.86 | 22 | 11 | 16.4 | 1.78 | 207 | 17.24 | 8316 | 16636 |
| 10 | 0.00 | 11 | 5 | 8.6 | 1.73 | 334 | 9.34 | 5877 | 12042 |
| 11 | 0.00 | 14 | 3 | 8.5 | 1.08 | 44 | 7.58 | 24356 | 44738 |
| 12 | 0.00 | 14 | 1 | 8.4 | 0.86 | 86 | 6.49 | 24499 | 45228 |
| 13 | 0.00 | 20 | 1 | 10.9 | 1.12 | 194 | 8.28 | 24531 | 45119 |
| 14 | 2.79 | 18 | 12 | 14.3 | 4.00 | 177 | 12.28 | 7143 | 14553 |
| 15 | 0.00 | 24 | 13 | 17.6 | 2.04 | 195 | 15.37 | 23417 | 43387 |
| 16 | 0.00 | 23 | 15 | 19.3 | 2.06 | 167 | 18.71 | 20766 | 40170 |
| 17 | 5.08 | 26 | 17 | 20.6 | 2.97 | 173 | 20.42 | 14263 | 26098 |
| 18 | 10.16 | 22 | 11 | 13.0 | 1.56 | 6 | 10.25 | 8022 | 15674 |
| 19 | 2.79 | 21 | 10 | 15.1 | 1.22 | 155 | 15.02 | 10975 | 20937 |
| 20 | 1.78 | 18 | 8 | 14.2 | 2.64 | 275 | 12.25 | 24965 | 45137 |
| 21 | 0.00 | 18 | 6 | 11.7 | 0.67 | 76 | 9.73 | 23457 | 42838 |
| 22 | 0.00 | 14 | 8 | 12.3 | 2.64 | 68 | 11.07 | 8771 | 17244 |
| 23 | 0.00 | 17 | 10 | 12.1 | 2.23 | 17 | 10.35 | 12174 | 22430 |
| 24 | 0.00 | 22 | 11 | 16.0 | 2.62 | 199 | 11.25 | 24681 | 43973 |
| 25 | 0.00 | 25 | 10 | 17.6 | 1.47 | 226 | 12.61 | 23997 | 44117 |
| 26 | 0.00 | 26 | 14 | 20.7 | 4.15 | 180 | 13.86 | 20937 | 36976 |
| 27 | 0.76 | 16 | 5 | 10.2 | 1.65 | 23 | 10.55 | 6550 | 11648 |
| 28 | 0.00 | 16 | 2 | 9.6 | 1.48 | 326 | 8.17 | 26444 | 45130 |
| 29 | 0.00 | 18 | 6 | 13.1 | 1.40 | 169 | 10.27 | 25876 | 44219 |
| 30 | 0.00 | 22 | 13 | 16.8 | 2.45 | 169 | 14.49 | 15517 | 27859 |
| Mon. Tot. Precip. 70.9 mm | Mean wind vel. 2.091 m/s |
| Mon. Mean Temp. 13.9 deg. C | Wind dir 177 deg |
| Mean Max. Temp. 19.3 deg. C | Mean Min. Temp. 8.5 deg. C |
| Extreme Max. Temp 27.5 deg. C | Mean vapor press 11.90 mb |
| Extreme Min. Temp 0.7 deg. C | Total Solar Rad 511937 KJ/sq. m |
| Total photosyn. 940111 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 |