Meteorologic data were collected more or less continuously (excepting sensor failures) between 1987 and 1993 using two remotely operated Sierra Misco Alert weather stations. One weather station was located at Dillon Beach towards the northern end of Tomales Bay, while the other station was placed on Tomasini Point near the southern end of the bay. Data were collected every fifteen minutes for WIND SPEED AND DIRECTION (m/s), RELATIVE HUMIDITY (%), AIR TEMPERATURE (degrees C), and SOLAR RADIATION (Watts / m2). The raw data were then averaged over each day. The fraction of the day from which data were recovered as well as the number of records used to calculate the daily average were also included in the online data sets to aid in determining outliers.
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Daily wind data was first broken down into North-South and East-West vectors. These vectors were then integrated over each day to obtain average North-South and East-West vectors. These average vectors were then added to yield an average magnitude and direction the wind was blowing from for each day. The online data columns are in the following format:
[ YEAR, JULIAN DAY, SPEED, DIRECTION, FRACTION OF DAY WITH DATA, NUMBER OF RECORDS USED ]
Solar radiation data were not reported as daily averages. Total solar radiation (TSR) data were integrated over each day and reported in Watts/m 2. To convert to photosynthetically active radiation (PAR) in units of Einsteins m -2 day -1, multiply Watts/2 by 5.875. This is an approximation based on the assumption that PAR = 0.43 TSR. The online data columns are in the following format:
[ YEAR, JULIAN DAY, AIR TEMPERATURE, FRACTION OF DAY WITH DATA, FRACTION OF DAY WITH DAYLIGHT, NUMBER OF RECORDS USED ]
DESCRIPTION OF TOMALES BAY AND THE LMER/BRIE RESEARCH PROGRAM:
