Station report
Homestake Meteorological Station, 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 8,831 ft above sea level, 28 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 21.53 inHg and the temperature at 27.5 F.
Section from sea level of where Homestake Meteorological Station stands in the atmosphere, height to scale: the station 8,831 feet above sea level with 28 per cent of the air below it; the standard atmosphere's pressure there, 21.53 inches of mercury, and temperature, 27.5 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 392810106221001 FIG. D WHERE HOMESTAKE METEOROLOGICAL STATION 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 20,000 SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERE HOMESTAKE METEOROLOGICAL STATION 28 PER CENT OF THE AIR BELOW IT 8,831 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 50 PER CENT OF THE AIR BELOW, 17,970 FT STANDARD PRESSURE HERE 21.53 inHg STANDARD TEMPERATURE HERE 27.5 F TITLE Homestake Meteorological Station, the column STATION REPORT · DCP 392810106221001 TYPE SECTION SCALE HEIGHT TO SCALE REV FROM THE REGISTER SHEET 1 of 3 DATE 2026-10-11 ID SR-392810106221001-1 DRAWN AS linework on paper SOURCES FB-ENG-001, FB-ENG-003 On Oct 11 the noon sun stands 43 degrees above the horizon at 39.47 N, and the day is 11 h 12 min long. Level ground there takes 69 per cent of the noon sunlight a surface facing the sun would.
Elevation of the noon sun at Homestake Meteorological Station, angles true: on Oct 11 it stands 43 degrees above the horizon, against 74 at the June solstice, 51 at the equinoxes and 27 at the December solstice; the day is 11 h 12 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 392810106221001 FIG. E THE SUN AT HOMESTAKE METEOROLOGICAL STATION 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 74° EQUINOXES 51° DECEMBER SOLSTICE 27° OCT 11, 43° SOUTH ANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLY DAY LENGTH 11 H 12 MIN LEVEL GROUND TAKES 69 PER CENT OF THE NOON SUN A FACING SURFACE WOULD LATITUDE 39.47 N; THE SUN'S DECLINATION -7.2° TITLE Homestake Meteorological Station, the sun STATION REPORT · DCP 392810106221001 TYPE ELEVATION SCALE ANGLES TRUE REV FROM THE REGISTER SHEET 2 of 3 DATE 2026-10-11 ID SR-392810106221001-2 DRAWN AS linework on paper SOURCES FB-ENG-007 A data collection platform, 8,831 ft above sea level. Its sensors, as its network builds them.
Elevation of a data collection platform, Homestake Meteorological Station, 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 392810106221001 FIG. F THE INSTRUMENT ELEVATION OF A DATA COLLECTION PLATFORM, EACH SENSOR WITH WHAT IT READ ANTENNA, SENDING BY SATELLITE - AIR TEMPERATURE - PRECIPITATION GAUGE - SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALE TITLE Homestake Meteorological Station, the instrument STATION REPORT · DCP 392810106221001 TYPE ELEVATION SCALE SCHEMATIC REV FROM THE REGISTER SHEET 3 of 3 DATE 2026-10-11 ID SR-392810106221001-3 DRAWN AS linework on paper SOURCES FB-INS-001 
FB-ENG-001, Fig. AAtmosphere in section
FB-ENG-003, Fig. CHydrostatic balance
FB-ENG-007, Fig. ARadiation budget
FB-INS-001, Fig. AWhat an instrument is