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| VIRGINIA COAST RESERVE LONG-TERM ECOLOGICAL RESEARCH |
Site PHCK, Month JUL, 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 | 28 | 23 | 25.2 | 2.13 | 55 | 5.90 | 20637 | 42147 |
| 2 | 3.10 | 34 | 24 | 28.4 | 1.52 | 217 | 7.47 | 18233 | 37448 |
| 3 | 1.30 | 33 | 25 | 28.2 | 1.85 | 282 | 7.34 | 21623 | 44151 |
| 4 | 0.00 | 26 | 23 | 24.6 | 2.05 | 59 | 6.67 | 5201 | 11648 |
| 5 | 0.00 | 33 | 25 | 28.0 | 1.14 | 278 | 7.33 | 17052 | 35413 |
| 6 | 0.00 | 31 | 25 | 28.0 | 0.88 | 133 | 7.96 | 19318 | 38781 |
| 7 | 0.00 | 35 | 25 | 30.0 | 1.94 | 217 | 8.09 | 25105 | 50516 |
| 8 | 1.10 | 37 | 24 | 29.8 | 1.69 | 234 | 7.07 | 24824 | 50464 |
| 9 | 0.30 | 31 | 22 | 27.3 | 0.99 | 47 | 6.87 | 25942 | 51902 |
| 10 | 2.80 | 29 | 21 | 25.4 | 0.97 | 71 | 6.43 | 17556 | 36445 |
| 11 | 12.20 | 31 | 21 | 26.7 | 0.45 | 91 | 7.32 | 16794 | 33850 |
| 12 | 0.00 | 32 | 20 | 26.1 | 0.59 | 146 | 6.66 | 24844 | 49179 |
| 13 | 8.50 | 32 | 24 | 29.1 | 2.25 | 227 | 8.53 | 14789 | 29595 |
| 14 | 0.00 | 32 | 24 | 27.8 | 1.94 | 321 | 6.74 | 23572 | 46901 |
| 15 | 0.00 | 32 | 22 | 26.7 | 1.00 | 60 | 6.60 | 26325 | 52214 |
| 16 | 0.00 | 30 | 16 | 25.0 | 0.64 | 73 | 5.93 | 24010 | 47484 |
| 17 | 0.00 | 32 | 15 | 24.7 | 1.45 | 225 | 5.80 | 25408 | 50027 |
| 18 | 0.00 | 34 | 25 | 28.8 | 3.23 | 230 | 6.92 | 25502 | 52461 |
| 19 | 2.80 | 32 | 24 | 28.2 | 3.67 | 224 | 6.94 | 18064 | 38504 |
| 20 | 0.30 | 34 | 25 | 29.8 | 2.31 | 232 | 8.12 | 22575 | 45756 |
| 21 | 0.00 | 37 | 25 | 31.0 | 2.20 | 265 | 7.78 | 22863 | 45059 |
| 22 | 0.00 | 35 | 28 | 31.2 | 1.11 | 278 | 8.47 | 21365 | 42543 |
| 23 | 0.00 | 38 | 29 | 32.9 | 2.16 | 238 | 8.41 | 23660 | 47397 |
| 24 | 0.00 | 32 | 25 | 29.1 | 1.21 | 55 | 6.96 | 22327 | 45354 |
| 25 | 18.30 | 33 | 25 | 29.5 | 0.67 | 187 | 9.45 | 11807 | 24436 |
| 26 | 0.00 | 43 | 25 | 30.5 | 1.85 | 209 | 10.37 | 17516 | 34763 |
| 27 | 3.10 | 32 | 22 | 25.3 | 2.08 | 17 | 7.50 | 12200 | 24870 |
| 28 | 0.00 | 28 | 21 | 24.0 | 2.19 | 41 | 6.17 | 16320 | 33110 |
| 29 | 44.20 | 24 | 19 | 22.4 | 2.88 | 39 | 7.77 | 4338 | 9475 |
| 30 | 8.40 | 24 | 19 | 21.7 | 0.95 | 40 | 6.97 | 3932 | 8590 |
| 31 | 0.30 | 66 | 21 | 25.0 | 0.49 | 66 | 7.76 | 20668 | 40531 |
| Mon. Tot. Precip. 106.7 mm | Mean wind vel. 1.628 m/s |
| Mon. Mean Temp. 27.4 deg. C | Wind dir 239 deg |
| Mean Max. Temp. 33.2 deg. C | Mean Min. Temp. 23.1 deg. C |
| Extreme Max. Temp 65.5 deg. C | Mean vapor press 7.36 mb |
| Extreme Min. Temp 15.3 deg. C | Total Solar Rad 594367 KJ/sq. m |
| Total photosyn. 1201012 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 |