CANADA GLACIER LONGWAVE STATION
| Peter Pan (a) and Captain Hook (b) cliff longwave radiation measurements: |
| lnw24a.dat |
| lnw25a.dat |
| lnw1-26a.dat |
| lnw2-26a.dat |
| lnw2-26b.dat |
| lnw27a.dat |
| lnw27b.dat |
| Includes an epply pyrgeometer pointed away from the cliff measuring incoming longwave radiation, and IRT pointed toward the cliff measuring the temperature of the cliff face (from which we can calculate outgoing longwave radiation), and a 107 temperature probe mounted to the underside of the board for air temperature. |
| Pyrgeometers run on cliff: |
| 31512F3 cal = 3.47*10^-6 Vm^2/W |
| 29786F3 cal = 4.01*10^-6 Vm^2/W |
| Calibration multiplier used for moving sensor = 288.2 |
| Need calibration multiplier used for the fixed sensor to correct the fixed data. Would Thomas have that? They were pyrgeometers run during the 1998-99 summer and then sent to ASA for recalibration after AGF and KJL finished with them. |
| If not, fixed pyrgeometer probably uses 249.4 as multiplier, assuming the above calibration coefficients are correct. |
| Sampling is every 2 seconds, averaged and saved every minute. Soil temperatures were measure nearby (see field notes Taylor Valley 1998.02 pg. 71). Soil A is next to the ice apron south of the experiement site on the cliff. Soil B is a small hill about 40-60 m NW of the cliff site, soil C is next to the stream gauge box. Directly in front of the cliff site is the creek and beyond that the bog area with water, wetted soil, and sandbars. |
| Output array definitions for lnw24a.dat and lnw25a.dat: |
| 1. array I.D. |
| 2. day |
| 3. time (hour/minute) |
| 4. seconds |
| 5. pyrg |
| 6. tpile |
| 7. hemiT |
| 8. caseT |
| 9. IRT (C) |
| 10. Tair (C) |
| lnw24a.dat: started at 21:25 JD 24 |
| soil A 8.5C |
| 2m 2128-2130 |
| 4m 2133-2135 |
| 6m 2137-2139, soil A 8.5C |
| 8m 2142-2144 |
| 10m 2147-2149 |
| 12m 2152-2154, soil A 8.5C |
| At 2200 moist soil 5.8 C (pea-gravel), water 0.9 C, saturated sand 5.8 C, soil B (dry) 6.0 C, further east of B 7.5 C (sunnier?), soil C 6.1 C |
| lnw25a.dat: started at 1315 JD 25 (AGF) |
| 1315.23 platform at ground level, sky 10/10 overcast, soil A 8.5 C, moist soil near stream 8.5 C, stream 1.0 C, soil B 11.5 C (thermometer in ice bath 0.4 C) |
| note on time: 1315.23 is 1300 hours (1pm), 15 minutes, 23 seconds |
| 1321.34 hoisting |
| 2m 1323.18 in position, soil 9.0 |
| 1329.10 hoist |
| 4m 1330 in position |
| 1335.07 hoist |
| 6m 1336.10 in position, soil 8.9 C, moist soil 8.1 C, soil B 12.1 C |
| 1341.40 hoist |
| 8m 1343 in position, soil 8.1 C |
| 1348.07 hoist |
| 10m 1350 in position |
| 1355.25 hoist |
| 12m 1357 in position, soil A 7.6 C, moist soil 7.5 C, soil B 9.3 C |
| 1403.25 lower |
| 10m 1405 in place, soil 8.4 C |
| 1410.22 lower |
| 8m 1412 in place, soil 8.7 C |
| 1417.20 lower |
| 6m 1419 in place, soil 8.7 C, moist sand 8.6 C, soil B 11.3 C |
| 1424.30 lower |
| 4m 1426 in place, soil 9.0 C |
| 1431.30 lower |
| 2m 1433 in place, soil 9.3 C |
| 1438.30 lower |
| 0m 1440 in place on ground, soil 9.5 C, moist sand 8.5 C, soil B 12.7 C, stream 1.4 C |
| 1445.20 end |
| Output array definitions for lnw1-26a.dat, lnw2-26a.dat, lnw2-26b.dat, lnw27b.dat: |
| 1. array I.D. |
| 2. day |
| 3. time (hour/minute) |
| 4. seconds |
| 5. pyrg |
| 6. tpile |
| 7. hemiT |
| 8. caseT |
| 9. IRT (C) |
| 10. Tair (C) |
| 11. Thermocouple (C) |
| 12. Battery voltage |
| Note: lnw1-26a.dat and lnw2-26a.dat are both moving-platform runs. lnw2-26b.dat is a second pyrgeometer fixed on a post at the bottom of the cliff on the ice apron. There is no IRT on this station, so the IRT data is garbage. It is running a ventilated thermocouple. I'm not sure if the platform is also running a Tc, or if that data slot is junk. |
| lnw1-26a.dat: started at 1806 JD 26 |
| cliff in shadow (all shadowed), 4/10 cloud, mid-height, soil A 8.4 C, moist soil 6.0 C, water 0.8 C, soil B 6.6 C |
| 2m 1818.20 in place |
| 1825.05 raise |
| 4m 1826 in place |
| 1831 raise |
| 6m 1832 in place, soil A 6.6 C, moist soil 4.1 C, water 0.7 C, soil B 6.0 C |
| 1837 raise |
| 8m 1838 in place |
| omit 1839 - switching cords |
| 1844 raise |
| 10m 1846 in place |
| 1851 raise |
| 12m 1853 in place, soil A 5.0 C, moist soil 2.6 C, water 0.7 C, soil B 5.4 C |
| 1858 lower |
| lnw2-26a.dat: started at 2130 JD 26 |
| partly cloudy, 1/10, generally sunny |
| run documented by AGF |
| 2m stable at 2136, 61. C near soil, 1.0 C stream, 5.5 C damp soil, 6.3 C soil B |
| 2141.08 hoist |
| 4m 2143 stable |
| 2148.15 hoist |
| 6m 2149 stable, 7.7 C soil near ice, stream water 0.7 C, moist soil 5.7 C, soil B 10.6 C |
| 2154.30 hoist |
| 8m 2156 stable |
| 2201.30 hoist |
| 10m 2203 stable, soil 8.5 C |
| 2208.40 hoist |
| 12m 2210 stable, soil 8.7 C, 4.5 C damp, 5.9 C dry soil |
| 2215 drop |
| lnw2-26b.dat |
| second system set up on apron and run concurrent with lnw2-26a.dat to record incoming longwave radiation at a fixed point near the ground during the run. |
| lnw27a.dat: started 1130 JD 27 |
| 2m 1130 steady start, shaded soil near apron -0.7 C, shaded stream water 0.3 C, shaded moist (frozen) soil 0.3 C, sunny soil B 8.7 C, sun/shade line halfway between stream flume and gauge box |
| 1135.45 hoist |
| 4m 1137 steady |
| 1142.30 hoist |
| 6m 1143 steady, shaded apron soil -0.1 C, shaded water 0.3 C, shaded moist (frozen) soil 0.1 C, sunny soil B (dry soil) 11.2 C, sun/shade line 2/3 towards flume |
| 1150.30 hoist |
| 8m 1152 steady |
| 1157.20 hoist |
| 10m 1159 steady |
| 1204.30 hoist |
| 12m 1206 steady, shaded apron soil -0.4 C, shaded water 0.4 C, shaded moist (frozen) soil 0.1 C, shade/sun line ¾ towards flume |
| 1212.02 lower |
| 6m 1214 stable |
| 1219.30 lower |
| 2m 1220 stable |
| 1225.15 lower and end |
| lnw27b.dat |
| second system set up on apron and run concurrent with lnw27a.dat to record incoming longwave radiation at a fixed point near the ground during the run. |