Station report
Tierra Alta, 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 2,428 ft above sea level, 8 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.39 inHg and the temperature at 50.3 F.
Section from sea level of where Tierra Alta stands in the atmosphere, height to scale: the station 2,428 feet above sea level with 8 per cent of the air below it; the standard atmosphere's pressure there, 27.39 inches of mercury, and temperature, 50.3 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 TWDB-SLTIE FIG. D WHERE TIERRA ALTA 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 TIERRA ALTA 8 PER CENT OF THE AIR BELOW IT 2,428 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 27.39 inHg STANDARD TEMPERATURE HERE 50.3 F TITLE Tierra Alta, the column STATION REPORT · DCP TWDB-SLTIE TYPE SECTION SCALE HEIGHT TO SCALE REV FROM THE REGISTER SHEET 1 of 3 DATE 2026-10-17 ID SR-TWDBSLTIE-1 DRAWN AS linework on paper SOURCES FB-ENG-001, FB-ENG-003 On Oct 17 the noon sun stands 49 degrees above the horizon at 31.08 N, and the day is 11 h 14 min long. Level ground there takes 76 per cent of the noon sunlight a surface facing the sun would.
Elevation of the noon sun at Tierra Alta, angles true: on Oct 17 it stands 49 degrees above the horizon, against 82 at the June solstice, 59 at the equinoxes and 35 at the December solstice; the day is 11 h 14 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 TWDB-SLTIE FIG. E THE SUN AT TIERRA ALTA 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 82° EQUINOXES 59° DECEMBER SOLSTICE 35° OCT 17, 49° SOUTH ANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLY DAY LENGTH 11 H 14 MIN LEVEL GROUND TAKES 76 PER CENT OF THE NOON SUN A FACING SURFACE WOULD LATITUDE 31.08 N; THE SUN'S DECLINATION -9.5° TITLE Tierra Alta, the sun STATION REPORT · DCP TWDB-SLTIE TYPE ELEVATION SCALE ANGLES TRUE REV FROM THE REGISTER SHEET 2 of 3 DATE 2026-10-17 ID SR-TWDBSLTIE-2 DRAWN AS linework on paper SOURCES FB-ENG-007 A data collection platform, 2,428 ft above sea level. Its sensors, as its network builds them.
Elevation of a data collection platform, Tierra Alta, 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 TWDB-SLTIE 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 Tierra Alta, the instrument STATION REPORT · DCP TWDB-SLTIE TYPE ELEVATION SCALE SCHEMATIC REV FROM THE REGISTER SHEET 3 of 3 DATE 2026-10-17 ID SR-TWDBSLTIE-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