| VIRGINIA COAST RESERVE LONG-TERM ECOLOGICAL RESEARCH |
Site HOGI, Month DEC, Year 1999 |
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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 | 2 | -2 | 0.3 | 3.77 | 277 | 3.81 | 11927 | 19202 |
| 2 | 0.00 | 9 | 0 | 4.1 | 1.78 | 284 | 5.16 | 11253 | 17744 |
| 3 | 0.00 | 13 | 3 | 7.3 | 0.36 | 296 | 7.67 | 7720 | 11814 |
| 4 | 0.00 | 20 | 8 | 12.4 | 0.56 | 298 | 9.63 | 10084 | 14910 |
| 5 | 0.00 | 18 | 9 | 12.6 | 1.17 | 275 | 12.56 | 10898 | 15799 |
| 6 | 13.46 | 16 | 11 | 14.2 | 1.70 | 272 | 16.34 | 2889 | 5009 |
| 7 | 0.25 | 11 | 5 | 8.1 | 2.91 | 291 | 8.92 | 10630 | 16012 |
| 8 | 0.00 | 12 | 0 | 5.4 | 0.23 | 307 | 7.77 | 10155 | 14668 |
| 9 | 0.00 | 14 | 2 | 7.3 | 0.42 | 275 | 9.67 | 8921 | 12836 |
| 10 | 6.60 | 17 | 10 | 12.8 | 1.37 | 276 | 14.24 | 6185 | 9624 |
| 11 | 0.00 | 14 | 3 | 7.3 | 2.21 | 291 | 6.89 | 11191 | 16252 |
| 12 | 0.00 | 13 | 3 | 6.2 | 0.56 | 306 | 7.15 | 10048 | 14298 |
| 13 | 0.00 | 16 | 6 | 12.8 | 0.76 | 265 | 14.16 | 3999 | 6696 |
| 14 | 29.21 | 19 | 11 | 14.0 | 1.20 | 269 | 15.97 | 6226 | 9291 |
| 15 | 0.00 | 13 | 8 | 10.4 | 1.07 | 283 | 12.06 | 4992 | 8005 |
| 16 | 0.00 | 12 | 7 | 10.1 | 0.77 | 297 | 9.87 | 8319 | 12167 |
| 17 | 0.00 | 11 | 2 | 7.7 | 0.81 | 285 | 6.56 | 10734 | 15570 |
| 18 | 0.00 | 14 | 4 | 8.2 | 0.64 | 251 | 9.03 | 6062 | 9458 |
| 19 | 0.00 | 12 | 9 | 11.1 | 2.42 | 130 | 12.64 | 3578 | 6077 |
| 20 | 1.02 | 17 | 11 | 13.9 | 1.44 | 175 | 16.06 | 5084 | 8116 |
| 21 | 1.02 | 13 | 6 | 10.9 | 1.06 | 300 | 12.81 | 2423 | 4182 |
| 22 | 1.27 | 7 | 1 | 3.7 | 2.07 | 316 | 6.92 | 5521 | 302 |
| 23 | 0.25 | 8 | -3 | 3.7 | 0.47 | 315 | 5.80 | 9815 | 14351 |
| 24 | 0.00 | 6 | -2 | -0.1 | 1.89 | 323 | 4.23 | 3996 | 7150 |
| 25 | 0.00 | -0 | -5 | -2.4 | 2.36 | 298 | 3.26 | 10558 | 17237 |
| 26 | 0.00 | 8 | -2 | 1.7 | 1.37 | 289 | 4.81 | 10629 | 17059 |
| 27 | 0.00 | 8 | -3 | 2.0 | 0.54 | 314 | 5.65 | 10857 | 16327 |
| 28 | 0.00 | 3 | -1 | 0.8 | 0.94 | 311 | 4.97 | 4902 | 8673 |
| 29 | 0.00 | 6 | -2 | 2.5 | 1.83 | 288 | 5.01 | 10902 | 17297 |
| 30 | 0.00 | 14 | 4 | 7.3 | 1.40 | 283 | 7.80 | 10599 | 15970 |
| 31 | 0.00 | 13 | 2 | 7.2 | 0.62 | 276 | 8.80 | 10039 | 14973 |
| Mon. Tot. Precip. 53.1 mm | Mean wind vel. 1.312 m/s |
| Mon. Mean Temp. 7.2 deg. C | Wind dir 287 deg |
| Mean Max. Temp. 11.5 deg. C | Mean Min. Temp. 3.4 deg. C |
| Extreme Max. Temp 19.6 deg. C | Mean vapor press 8.91 mb |
| Extreme Min. Temp -4.5 deg. C | Total Solar Rad 251134 KJ/sq. m |
| Total photosyn. 377068 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 |
