3.33.1. DAVIS

3.33.1.1. Introduction

Vantage pro plus is a versatile weather station, manufactured by Davis. It measures rain, temperature, humidity, pressure, wind and downward shortwave radiation. It has been used for weather measurements extensively across LUMA sites.

3.33.1.2. Manufacturer and Model

Model	Brand	Type
Vantage Pro Plus	Davis	Weather station

3.33.1.3. Output definitions

Ouput definition ID	File Identifier	Level Number	QAQC notes	File time resolution
Davis	Davis_%SITE	0	No_QA	1min
Davis	Davis_%SITE	0	No_QA	15min
Davis	Davis_%SITE	0	No_QA	30min
Davis	Davis_%SITE	1	Thresholds	1min
Davis	Davis_%SITE	1	Thresholds	15min
Davis	Davis_%SITE	1	Thresholds	30min

3.33.1.4. Variables measured by instrument

Table 3.27 Variables measured - sorted alphabetically

Variable ID	Full Name	Unit	Lower Threshold	Upper Threshold	Files present (Output definition ID,Level No,Time resolution)
dir	wind_direction	degree	0.0	360.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
FLAG	Status flag	N/A			Davis,1,1min Davis,1,15min Davis,1,30min
Kdn	incoming_shortwave_radiation	W.m-2	0.0	1200.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
nSamples	nSamples	samples/interval			Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
press	barometric_pressure	hPa	800.0	1200.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
R_acc	accumulated_rain	mm			Davis,1,1min Davis,1,15min Davis,1,30min
rain_acc	Rain accumulation over file interval period	mm	0.0	3.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
RH	relative_humidity	%	0.0	100.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
RR	rain_rate	mm.h-1	0.0	5400.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
sd_WS	Horizontal wind speed standard deviation	m.s-1			Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,1min Davis,1,15min Davis,1,15min Davis,1,30min Davis,1,30min
sun_status	Sunshine status	N/A			Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
t_dew	Dew point temperature	Celsius			Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
Tair	air_temperature	Celsius	-30.0	50.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
uv_index	Ultraviolet index	N/A			Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
visit_reason	site_visit_reason_description	N/A			Davis,1,1min Davis,1,15min Davis,1,30min
WS	horizontal_wind_speed	m.s-1	0.0	150.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
WS_max	Horizontal wind speed maximum	m.s-1	0.0	50.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min
WS_min	Horizontal wind speed minimum	m.s-1	0.0	50.0	Davis,0,1min Davis,0,15min Davis,0,30min Davis,1,1min Davis,1,15min Davis,1,30min

3.33.1.5. Serials

Serial	Suffix
A00422A003	A
A00422A002	B
AJ130401024	C
AK130521017	D
AK130521018	E
AZ170310004	F
BE181023018	G

3.33.1.6. Deployments

3.33.1.6.1. Serial number: A00422A002

Site ID	Start date	End date
KSS45W	2011-04-21 00:00	2011-09-01 00:00
NDT	2011-09-02 00:00	2013-02-27 00:00
KSSW	2013-04-08 00:00	2013-06-03 00:00
IML	2013-07-19 00:00	2014-07-31 00:00
IML	2014-08-01 00:00	2017-11-29 00:00

3.33.1.6.2. Serial number: AK130521018

Site ID	Start date	End date
BFCL	2014-01-18 00:00	2018-10-31 00:00

3.33.1.6.3. Serial number: A00422A003

Site ID	Start date	End date
KSS45W	2011-04-21 00:00	2011-05-16 00:00
NK	2011-05-16 00:00	2011-05-23 00:00
NDT	2011-05-24 00:00	2011-09-01 00:00
NGT	2012-01-10 00:00	2013-02-27 00:00
KSSW	2013-04-08 00:00	2013-06-03 00:00
IMU	2013-07-19 00:00	2014-07-31 00:00
IMU	2014-08-01 00:00	2019-08-30 00:00

3.33.1.6.4. Serial number: AJ130401024

Site ID	Start date	End date
BCTW	2014-01-18 00:00	2014-03-20 00:00
BCT	2014-03-20 00:00	2018-10-31 00:00

3.33.1.6.5. Serial number: BE181023018

Site ID	Start date	End date
IMU	2019-08-30 00:00	2020-11-04 00:00

3.33.1.6.6. Serial number: AZ170310004

Site ID	Start date	End date
IML	2017-11-29 00:00	2018-10-31 00:00

3.33.1.6.7. Serial number: AK130521017

Site ID	Start date	End date
BGH	2014-01-18 00:00	2018-10-31 00:00

3.33.1.7. Photos

Fig. 3.86 At BCT 15-10-2015.

Fig. 3.87 At BFCL 03-02-2014.

Fig. 3.88 At NGT 12-02-2013.

Fig. 3.89 At BMH 02-02-2016.

Fig. 3.90 At IML 31-07-2013.

Fig. 3.91 At IMU 04-11-2020.

3.33.1.8. Supplementary information

Link	Title	Description
Davis Vantage Pro manual	Davis Vantage Pro manual	From Davis instruments

3.33.1.9. Data acquisition

Data can be requested from Prof. Sue Grimmond (c.s.grimmond@reading.ac.uk).

3.33.1.10. References

1. Morrison, W., Kotthaus, S. and Grimmond, S. (2021) Urban surface temperature observations from ground-based thermography: intra- and inter-facet variability. Urban Climate, 35. 100748. ISSN 2212-0955 doi: https://doi.org/10.1016/j.uclim.2020.100748

2. Gabey, A. M., Grimmond, C. S. B. and Capel-Timms, I. (2019) Anthropogenic heat flux: advisable spatial resolutions when input data are scarce. Theoretical and Applied Climatology, 135 (1-2). pp. 791-807. ISSN 1434-4483 doi: https://doi.org/10.1007/s00704-018-2367-y

3. Crawford, B., Grimmond, C. S. B., Ward, H. C., Morrison, W. and Kotthaus, S. (2017) Spatial and temporal patterns of surface-atmosphere energy exchange in a dense urban environment using scintillometry. Quarterly Journal of the Royal Meteorological Society, 143 (703). pp. 817-833. ISSN 1477-870X doi: https://doi.org/10.1002/qj.2967

Tip

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