Station report
SR-99 - San Joaquin River, in 3 sheets Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.
1 The column2 The sun3 The instrumentAt 278 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.62 inHg and the temperature at 58.0 F.
Section from sea level of where SR-99 - San Joaquin River stands in the atmosphere, height to scale: the station 278 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.62 inches of mercury, and temperature, 58.0 degrees Fahrenheit. 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E © 2026 STORM STATION 247 THE FIELD BOOK STATION REPORT CF072 FIG. D WHERE SR-99 - SAN JOAQUIN RIVER STANDS IN THE ATMOSPHERE SECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHERE FT ABOVE SEA LEVEL 0 5,000 10,000 15,000 SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERE SR-99 - SAN JOAQUIN RIVER 1 PER CENT OF THE AIR BELOW IT 278 FT 10 PER CENT OF THE AIR BELOW, 2,890 FT 20 PER CENT OF THE AIR BELOW, 6,050 FT 30 PER CENT OF THE AIR BELOW, 9,540 FT 40 PER CENT OF THE AIR BELOW, 13,470 FT STANDARD PRESSURE HERE 29.62 inHg STANDARD TEMPERATURE HERE 58.0 F TITLE SR-99 - San Joaquin River, the column STATION REPORT · RWIS CF072 TYPE SECTION SCALE HEIGHT TO SCALE REV FROM THE REGISTER SHEET 1 of 3 DATE 2026-10-04 ID SR-CF072-1 DRAWN AS linework on paper SOURCES FB-ENG-001, FB-ENG-003 On Oct 4 the noon sun stands 49 degrees above the horizon at 36.84 N, and the day is 11 h 32 min long. Level ground there takes 75 per cent of the noon sunlight a surface facing the sun would.
Elevation of the noon sun at SR-99 - San Joaquin River, angles true: on Oct 4 it stands 49 degrees above the horizon, against 77 at the June solstice, 53 at the equinoxes and 30 at the December solstice; the day is 11 h 32 min long. 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E © 2026 STORM STATION 247 THE FIELD BOOK STATION REPORT CF072 FIG. E THE SUN AT SR-99 - SAN JOAQUIN RIVER ELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUE THE STATION JUNE SOLSTICE 77° EQUINOXES 53° DECEMBER SOLSTICE 30° OCT 4, 49° SOUTH ANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLY DAY LENGTH 11 H 32 MIN LEVEL GROUND TAKES 75 PER CENT OF THE NOON SUN A FACING SURFACE WOULD LATITUDE 36.84 N; THE SUN'S DECLINATION -4.6° TITLE SR-99 - San Joaquin River, the sun STATION REPORT · RWIS CF072 TYPE ELEVATION SCALE ANGLES TRUE REV FROM THE REGISTER SHEET 2 of 3 DATE 2026-10-04 ID SR-CF072-2 DRAWN AS linework on paper SOURCES FB-ENG-007 A road weather station, 278 ft above sea level. Its sensors, as its network builds them.
Elevation of a road weather station, SR-99 - San Joaquin River, each sensor drawn and labelled with what it read: no reading in the last day. 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E © 2026 STORM STATION 247 THE FIELD BOOK STATION REPORT CF072 FIG. F THE INSTRUMENT ELEVATION OF A ROAD WEATHER STATION, EACH SENSOR WITH WHAT IT READ THE ROAD, IN SECTION PAVEMENT SENSOR, SET IN THE ROAD - PROBE UNDER THE ROAD - AIR TEMPERATURE ON THE TOWER - WIND AT THE TOP OF THE TOWER - SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALE TITLE SR-99 - San Joaquin River, the instrument STATION REPORT · RWIS CF072 TYPE ELEVATION SCALE SCHEMATIC REV FROM THE REGISTER SHEET 3 of 3 DATE 2026-10-04 ID SR-CF072-3 DRAWN AS linework on paper SOURCES FB-INS-001