This file contains input and validation data for the Brewster AWS site.

The datasets are described in:

Cullen, N. J. and Conway, J. P.: A 22 month record of surface meteorology and energy balance from the ablation zone of Brewster Glacier, New Zealand, Journal of Glaciology, 61, 931-946, 2015.
Conway, J. P. and Cullen, N. J.: Cloud effects on surface energy and mass balance in the ablation area of Brewster Glacier, New Zealand, The Cryosphere, 10, 313-328, 2016.

Column names for BrewsterGlacier_Oct10_Sep12_mod3.dat

1	year 		(year; hour 24 included in day before)
2	month 		(month; hour 24 included in day before)
3	jd 		(julian day; hour 24 included in day before)
4	hourdec 		(decimal hour; midnight == 24)
5	time		(decimal days since 1st Jan 2010)
6	pres 		(barometric pressure (hPa))
7	tc 		(air temperature (C); corrected for solar heating at low wind speed)
8	tc2 		(air temperature scaled to 2 metres (C); scaled using log profile, roughenss length of and surface temp from lwout)
9	v 		(wind speed (m s^-1); corrected for low wind speed periods)
10	v2 		(wind speed scaled to 2 metres (m s^-1); scaled using log profile and roughness length of )
11	rh 		(relative humidity with respect to water (%))
12	ea 		(vapour pressure (hPa))
13	zm 		(height of wind speed measurements (m))
14	zh 		(height of temperature/ relative humidity measurements (m))
15	swin 		(incoming shortwave radiation on horizontal plane (W m^-2); corrected for snow covered periods and sensor tilt)
16	swin_surface 		(incoming shortwave radiation parallel to surface (W m^-2); corrected for snow covered periods and rotated from horizontal measurements; preferred data for model)
17	accalb 		(daily albedo; ratio of sums of outgoing and incoming radiation)
18	lwin 		(incoming longwave radiation on horizontal plane (W m^-2); corrected for incoming SW but not sensor tilt)
19	lwout 		(outgoing longwave radiation (W m^-2); limited to 316 W m^-2)
20	surface 		(surface height change (m))
21	sfcch 		(change in height of instruments (m); for use in mass balance model if 2 m variables not used)
22	precip 		(precipitation (mm w.e.); scaled from Makarora rain gauge including final correction factor of 1.25)
23	neff5 		(cloud metric based on ratio of daily sums of potential and measured incoming shortwave, with cloud coefficient (k) dependent on daily average vapour pressure)
24	nep1 		(cloud metric based on effective emissivity during each 30 minute period)
25	nep2 		(cloud metric based on daily average of effective emissivities of all 30 minute periods during the 24 hour period; preferred metric)
26	nep2_day 		(cloud metric based on daily average of effective emissivities of only 30 minute periods during daylight hours; for comparison to Neff5)

created using \Brewster Glacier\prepmodfile.m

Tab delimited horizontal version:

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26
year	month	jd	hourdec	time	pres	tc	tc2	v	v2	rh	ea	zm	zh	swin	swin_surface	accalb	lwin	lwout	surface	sfcch	precip	neff5	nep1	nep2	nep2_day

