FETCH 98

List of GPV output variables in Times Series Plots set
and in Vnn_red1.txt, Vnn_re10.txtfiles
Produced by ARAT Fokker 27 Volothèque

Conventions:

Full flight file names:
The Vnn_red1.txt or Vnn_re10.txt names mean
- nn: Flight number
- red or re: reduced set of Temperature, Radiation, Wind and other data
- 1: the output values are averaged during 1 second, whatever the original sampling
- 10: the output values are averaged during 10 seconds, whatever the original sampling
- txt: ASCII, coma separated columns
Description of a full flight file:
The files are ASCII files
- 1 line par time point, e.g. 1pt/sec or 1pt/10sec
- First line contains GPV names", see table below
- First column contains UTC time in seconds from midnight, temps, sorry for French language but it's a keyword
- Columns are separated by coma ; a coma ends each line
- Except in case of special processing needed because there is icing condition or instrument failure, the number of columns is the same for all the fligths, please check Info_Vnn.txt or readmenn.txt
- The LEGUM column contains the leg number (1-xx); a zero value means ferry part of the flight; see the first column N= in the Info_Vnn.txt
Description of a Leg file:
- The file name is the same as the Full Flight file name, except the extension: Lxx, where L means leg and xx is the leg number
- The data are the same as the Full Flight file, but each Leg file just contains only the time points included in the leg part of the flight
- The LEGUM column contains only the leg number xx, see the first column N= in the Info_Vnn.txt
Warning:
- Due to the method to average 1pt/10sec data, the LEGUM column might contain erroneous values in the Vnn_re10.txt files
- The Vnn_re10.Lxx files was checked and corrected one per one

Time series plots:

Two sets of plots are made for the Full Flight files, one for 1pt/sec file, one for 1pt/10sec file
Each virtual page contains 8 GPV parameters
The duration of a paper page is 1 hour

The output is sorted by virtual page

**Temperature, Radiation and Wind List**

version 2.00.00 990315
Col. #	GPV Name	Quick-look Name if exist	Description, if possible, the best measurement is chosen	Unit	Manufacturer / Model	Comment / Position
0	temps	TEMPS	UTC	s	Datum GPS	0-86400 sec
Virtual Page #1
1	PS	PS_DR *	Static Pressure raDome	hPa	ROSEMOUNT	Radome
2	TS	TS_DR *	Static Temperature raDome	°C	Rosemount 102 E2AL	Starboard Nose
3	TS_RF		Static Reverse Flow Temperature	°C	NCAR	Port Fuselage
4	LYM_AIR		Absolute Humidity, raw Water Vapor Concentration	V	AIR LA1	Port Nose
5	TPOT	TPOT	Potential Temperature	K	calculation	TS, PS
6	TPOT_VIR	TPOT_VIR	Virtual Pot. Temp.	K	calculation	TVIR, PS
7	TPOT_EQU		Equiv. Pot. Temp.	K	calculation	TS, PS
8	T_ROSEE	TD_GE1	Dew Point Temperature	°C	General Eastern 1011B	Starboard Fuselage
Virtual Page #2
9	R_TD	R_TDGE1	Specific Humidity	g.kg ^-1	calculation	TD_GE1, PS
10	HUC	HUC	Relative Humidity	%	Carbon Plate	Port Fuselage
11	WVSR	VISB_WM2	Upward Pyranometer	W.m ^-2	Eppley PSP 0.285 to 2.800 µm	Bottom Shell
12	WVSD	VISH_WM2	Downward Pyranometer	W.m ^-2	Eppley PSP 0.285 to 2.800 µm	Top Shell
13	WIRR	WIRR	Upward Pyrgeometer	W.m ^-2	Eppley PIR 4 to 45 µm	Bottom Shell
14	WIRD	WIRD	Downward Pyrgeometer	W.m ^-2	Eppley PIR 4 to 45 µm	Top Shell
15	TRR	TBARN_B	Radiometric Surface Temperature	°C	Barnes PRT5	Bottom Shell
16	RAD_R	LBARN_B	Upward Radiance	W.m ^-2.sr ^-1	Barnes PRT5	Bottom Shell
Virtual Page #3
17	RAD_D	LBARN_H	Downward Radiance	W.m ^-2.sr ^-1	Barnes PRT5	Top Shell
18	WRR	RGB_WM2	Upward RED Pyranometer	W.m ^-2	Eppley PSP dark red 0.63 µm	Bottom Shell
19	WRD	RGH_WM2	Downward RED Pyranometer	W.m ^-2	Eppley PSP dark red 0.63 µm	Top Shell
20	WUVR	UVB_WM2	Upward UV Photometer	W.m ^-2	Eppley TUVR 0.295 to 0.385 µm	Bottom Shell
21	WUVD	UVH_WM2	Downward UV Photometer	W.m ^-2	Eppley TUVR 0.295 to 0.385 µm	Top Shell
22	ROULIS	ROULIS	Aircraft Roll Angle	degrees	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
23	TANGAGE	TANGAGE	Aircraft Pitch Angle	degrees	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
24	CAP_GEO	CAP_GEO	Aircraft True Heading	degrees	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
Virtual Page #4
25	VN_INS		Northward velocity positive Northward	m.s ^-1	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
26	VE_INS		Eastward velocity positive Eastward	m.s ^-1	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
27	VV_INS		Vertical velocity positive Up	m.s ^-1	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
28	TVIR	TVIR	Virtual Temperature	°C	calculation	TS, R_TDGE1
29	Z	Z_OACI	Standard Altitude (baro)	m	SEXTANT AVIONIQUE	INS input
30	RALTI_05		Gound Altimeter	m	TRT AHV12	0-1500 m
31	RALTI_15	RALTI_15	Gound Altimeter	m	TRT AHV12	0-4500 m
32	VP	VP_DR *	True Air Speed	m.s ^-1	calculation	Radome
Virtual Page #5
33	INC_DRDG		Angle of Attack	degrees	calculation	Radome holes
34	DER_DRDG		Angle of Sideslip	degrees	calculation	Radome holes
35	VENTaVIT	MOD_VENT	Wind Velocity	m.s ^-1	Volothèque's calculation	Radome INS
36	VENTaDIR	DIR_VENT	Wind Direction	degrees	Volothèque's calculation	Radome INS
37	W	W	raw vertical velocity	m.s ^-1	Volothèque's calculation	Radome INS
38	LEGUM		Leg number		calculation	from INFO_Vnn.prt file
39	W_TREND		Linear Trend of W during a Leg	m.s ^-1	calculation	W, LEGUM
40	W_T_CORR		W corrected from Linear Trend during a Leg	m.s ^-1	W - W_TREND	W, W_TREND
Virtual Page #6
41	LAT_INS	LAT_GPS **	Aircraft Latitude	degrees	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
42	LON_INS	LON_GPS **	Aircraft Longitude	degrees	Sagem ULISS 45 i	Inertial Nav. Syst. CoG
43	CCN	NOYAUX	Optical Particules counter	part.cm-3	TSI 3220	log(raw count)
44	TURBIDIT	NEPHELO	Turbidity Aerosol Concentration	km ^-1	MRI 1550B
45	ACT_PCAS	ACT_PCAS	PCASP Activity	quanta	PMS PCASP 100X	housing
46	OZONE	OZONE	INSU's Ozone concentration	ppb	Thermo-Electron 49PS	in situ measurements
47	TD_GE2		Dew Point Temperature	°C	General Eastern 1011B	Starboard Fuselage
48	HUR_VL7	HUR	Relative Humidity%	1 V = 100%	Coreci 6100	Port Fuselage
Virtual Page #7
49	VP_AILE		Alternate True Air Speed	m.s ^-1	calculation	Starboard Wing copilot instruments
50	H_DEC		time	decimal hours	temps/3600

* In case of icing condition the copilot Aile Secours measurements are used

** Aircraft GPS is not available in the acquisition data system SAcCADe

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Christian Allet
updated on 990323.