| VIRGINIA COAST RESERVE LONG-TERM ECOLOGICAL RESEARCH |
Site OYSM, Month APR, Year 1999 |
|
|
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| 3 | 0.00 | 13 | 9 | 11.2 | 2.34 | 117 | 12.87 | . | . |
| 4 | 5.08 | 27 | 11 | 18.4 | 3.91 | 265 | 18.14 | . | . |
| 5 | 0.00 | 11 | 6 | 8.5 | 4.38 | 77 | 8.69 | . | . |
| 6 | 0.00 | 17 | 2 | 9.9 | 3.03 | 177 | 10.95 | . | . |
| 7 | 0.00 | 24 | 12 | 17.8 | 3.00 | 248 | 15.40 | . | . |
| 8 | 0.00 | 28 | 11 | 18.4 | 2.50 | 229 | 16.81 | . | . |
| 9 | 10.16 | 28 | 12 | 20.8 | 3.61 | 248 | 18.07 | . | . |
| 10 | 0.00 | 15 | 9 | 10.9 | 3.93 | 15 | 10.40 | . | . |
| 11 | 20.83 | 14 | 9 | 10.7 | 3.61 | 165 | 11.70 | . | . |
| 12 | 0.00 | 15 | 9 | 11.6 | 5.11 | 332 | 10.77 | . | . |
| 13 | 0.00 | 15 | 8 | 11.4 | 5.05 | 327 | 6.95 | . | . |
| 14 | 0.00 | 20 | 9 | 13.5 | 3.86 | 311 | 7.55 | . | . |
| 15 | 3.56 | 16 | 8 | 11.8 | 2.80 | 89 | 10.36 | . | . |
| 16 | 2.79 | 21 | 10 | 14.5 | 4.39 | 285 | 12.02 | . | . |
| 17 | 0.00 | 17 | 11 | 13.9 | 3.96 | 268 | 7.35 | . | . |
| 18 | 0.00 | 17 | 8 | 12.0 | 2.87 | 278 | 8.69 | . | . |
| 19 | 0.00 | 19 | 5 | 12.2 | 2.25 | 272 | 9.69 | . | . |
| 20 | 0.00 | 20 | 9 | 14.4 | 3.51 | 310 | 10.92 | . | . |
| 21 | 0.00 | 15 | 5 | 10.7 | 2.46 | 132 | 10.21 | . | . |
| 22 | 0.00 | 28 | 11 | 18.6 | 3.40 | 232 | 17.09 | . | . |
| 23 | 10.16 | 28 | 12 | 22.0 | 4.49 | 257 | 16.51 | . | . |
| 24 | 0.00 | 13 | 6 | 10.9 | 3.51 | 10 | 8.90 | . | . |
| 25 | 0.00 | 15 | 5 | 10.5 | 2.44 | 141 | 9.20 | . | . |
| 26 | 0.00 | 23 | 10 | 17.0 | 3.77 | 256 | 14.20 | . | . |
| 27 | 0.25 | 17 | 10 | 13.5 | 4.14 | 93 | 11.36 | . | . |
| 28 | 0.00 | 13 | 10 | 11.6 | 5.50 | 103 | 10.92 | . | . |
| 29 | 1.52 | 13 | 10 | 11.4 | 4.36 | 86 | 10.03 | . | . |
| 30 | 0.00 | 13 | 9 | 10.7 | 5.43 | 69 | 10.21 | . | . |
| Mon. Tot. Precip. 54.3 mm | Mean wind vel. 3.701 m/s |
| Mon. Mean Temp. 13.5 deg. C | Wind dir 312 deg |
| Mean Max. Temp. 18.5 deg. C | Mean Min. Temp. 8.8 deg. C |
| Extreme Max. Temp 28.5 deg. C | Mean vapor press 11.64 mb |
| Extreme Min. Temp 2.1 deg. C | Total Solar Rad . KJ/sq. m |
| Total photosyn. . uEin/sq.m |
![]() |
| Daily Total Precipitation (mm) |

![]() |
| Hourly Mean Temperatures (deg. C) |

![]() |
| Hourly Max Min and Mean Temperatures (deg. C) |

![]() |
| Wind Speed (m/s) |

![]() |
| Frequency of Wind Direction |

![]() |
| Wind Vectors (circle=1.5 m/s) |

![]() |
| Relative Humidity (percent) |

![]() |
| Photosynthetically Active Radiation (micro-einsteins per m squared) |

![]() |
| Hourly Photosynthetically Active Radiation (micro-einsteins per m squared) |

![]() |
| Solar Radiation (KiloJoules per Meter Squared) |

![]() |
| Hourly Solar Radiation (KiloJoules per Meter Squared) |

![]() |
| Hours of Station Operation |

![]() |
| Data Logger Battery Voltage and Internal Logger Temperature |
