COMMON CODE TABLES C-6, C-7

BUFR Tables Version 16.0.0 – 05/04/2011

Recently approved amendments are shown in red – last WMO update 05/04/2011

(last update of any type 02/24/2015 - not completely up to date)

COMMON CODE TABLE C-6: List of Units for BUFR Table B

Base SI Units (1)	Conventional abbreviation	Abbreviation in IA5/ASCII (5)	Abbreviation in ITA2  (5)	Definition in Base Units (2)
meter	m	m	M
kilogram	kg	kg	KG
second	s	s	S
ampere	A	A	A
kelvin	K	K	K
mole	mol	mol	MOL
candela	cd	cd	CD
Supplementary SI Units (1)
radian	rad	rad	RAD
steradian	sr	sr	SR
Derived SI Units with special names (1)
hertz	Hz	Hz	HZ	s^-1
newton	N	N	N	kg m s^-2
pascal	Pa	Pa	PAL	kg m^-1 s^-2
joule	J	J	J	kg m^2 s^-2
watt	W	W	W	kg m^2 s^-3
coulomb	C	C	C	A s
volt	V	V	V	kg m^2 s^-3 A^-1
farad	F	F	F	kg^-1 m^-2 s^4 A^2
ohm	Ω	Ohm	OHM	kg m^2 s^-3 A^-2
siemens	S	S	SIE	kg^-1 m^-2 s^3 A^2
weber	Wb	Wb	WB	kg m^2 s^-2 A^-1
tesla	T	T	T	kg s^-2 A^-1
henry	H	H	H	kg m^2 s^-2 A^-2
degree Celsius	°C	Cel	CEL	K+273.15
lumen	lm	lm	LM	cd sr
lux	lx	lx	LX	cd sr m^-2
becquerel	Bq	Bq	BQ	s^-1
gray	Gy	Gy	GY	m^2 s^-2
sievert	Sv	Sv	SV	m^2 s^-2
SI Unit prefixes (1) (3) ( 4)
(yotta)	(Y)	(Y)	(Y)
(zetta)	(Z)	(Z)	(Z)
exa	E	E	E
peta	P	P	PE
tera	T	T	T
giga	G	G	G
mega	M	M	MA
kilo	k	k	K
hecto	h	h	H
deca	da	da	DA
deci	d	d	D
centi	c	c	C
milli	m	m	M
micro	μ	u	U
nano	n	n	N
pico	p	p	P
femto	f	f	F
atto	a	a	A
(zepto)	(z)	(z)
(yocto)	(y)	(y)
Other, non-SI, units recognised by CGPM (4)
degree (angle)	°	deg	DEG
minute (angle)	'	'	MNT
second (angle)	"	"	SEC
liter	l or L	l or L	L
minute (time)	min	min	MIN
hour	h	h	HR
day	d	d	D
tonne	t	t	TNE
electron volt	eV	eV	EV
atomic mass unit	u	u	U
astronomic unit	AU	AU	ASU
parsec	pc	pc	PRS
Non-SI Units tolerated because of widespread use
nautical mile
knot	kt	kt	KT
decibel (6)	dB	dB	DB
hectare	ha	ha	HAR
week
year	a	a	ANN
Other Units as used by WMO (7)
percent	%	%	PERCENT
parts per thousand	‰	0/00	PERTHOU
eighths of cloud	okta	okta	OKTA
degrees true	°	deg	DEG
degrees per second	degree/s	deg/s	DEG/S
degrees Celsius (8)	°C	C	C
degrees Celsius per meter	°C/m	C/m	C/M
degrees Celsius per 100 meters	°C/100 m	C/100 m	C/100 M
Dobson Unit (9)	DU	DU	DU
month	mon	mon	MON
per second (same as hertz)	s^-1	/s	/S
per second squared	s^-2	s-2
knots per 1000 meters	kt/1000 m	kt/km	KT/KM
foot	ft.	ft	FT
inch	in	in	IN
decipascals per second (microbar per second)	dPa s^-1	dPa/s	DPAL/S
centibars per second	cb s^-1	cb/s	CB/S
centibars per 12 hours	cb/12 h	cb/12 h	CB/12 HR
dekapascal	daPa	daPa	DPAL
hectopascal	hPa	hPa	HPAL
hectopascals per second	hPa s^-1	hPa/s	HPAL/S
hectopascals per hour	hPa h^-1	hPa/h	HPAL/H
hectopascals per 3 hours	hPa/3 h	hPa/3 h	HPAL/3 HR
nano bar = hPa 10^-6	nbar	nbar	NBAR
grams per kilogram	g kg^-1	g/kg	G/KG
grams per kilogram per second	g kg^-1 s^-1	g kg-1 s-1
kilograms per kilogram	kg kg^-1	kg/kg	KG/KG
kilograms per kilogram per second	kg kg^-1 s^-1	kg kg-1 s-1
kilograms per square meter	kg m^-2	kg m-2
acceleration due to gravity	g	g
geopotential meter	gpm	gpm
millimeter	mm	mm	MM
millimeters per second	mm s^-1	mm/s	MM/S
millimeters per hour	mm h^-1	mm/h	MM/HR
millimeters to the sixth power per cubic meter	mm^6 m^-3	mm6 m-3
centimeter	cm	cm	CM
centimeters per second	cm s^-1	cm/s	CM/S
centimeters per hour	cm h^-1	cm/h	CM/HR
decimeter	dm	dm	DM
meters per second	m s^-1	m/s	M/S
meters per second per meter	m s^-1/m	m s-1/m
meters per second per 1000 meters	m s^-1/1000 m	m s-1/km
square meters	m^2	m2	M2
square meters per second	m^2 s^-1	m2/s	M2/S
kilometer	km	km	KM
kilometers per hour	km h^-1	km/h	KM/HR
kilometers per day	km/d	km/d	KM/D
per meter	m^-1	m-1	/M
becquerels per liter	Bq l^-1	Bq/l	BQ/L
becquerels per square meter	Bq m^-2	Bq m-2	BQ/M2
becquerels per cubic meter	Bq m^-3	Bq m-3	BQ/M3
millisievert	mSv	mSv	MSV
meters per second squared	m s^-2	m s-2
square meters second	m^2 s	m2 s
square meters per second squared	m^2 s^-2	m2 s-2
square meters per radian second	m^2 rad^-1 s	m2 rad-1 s
square meters per hertz	m^2 Hz^-1	m2/Hz
cubic meters	m^3	m3
cubic meters per second	m^3 s^-1	m3/s
cubic meters per cubic metre	m^3 m^-3	m3 m-3
meters to the fourth power	m^4	m4
meters to the two thirds power per second	m^2/3 s^-1	m2/3 s-1
logarithm per meter	log (m^-1)	log (m-1)
logarithm per square meter	log (m^-2)	log (m-2)
kilograms per meter	kg m^-1	kg/m
kilograms per square meter per second	kg m^-2 s^-1	kg m-2 s-1
kilograms per cubic meter	kg m^-3	kg m-3
per square kilogram per second	kg^-2s^-1	kg-2 s-1
seconds per meter	s m^-1	s/m
kelvin meters per second	K m s^-1	K m s-1
kelvins per meter	K m^-1	K/m
kelvin square meters per kilogram per second	K m^2 kg^-1 s^-1	K m2 kg-1 s-1
moles per mole	mol mol^-1	mol/mol
radians per meter	rad m^-1	rad/m
newtons per square meter	N m^-2	N m-2
pascals per second	Pa s^-1	Pa/s
kilopascal	kPa	kPa
joules per square meter	J m^-2	J m-2
joules per kilogram	J kg^-1	J/kg
watts per meter per steradian	W m^-1 sr^-1	W m-1 sr-1
watts per square meter	W m^-2	W m-2
watts per square meter per steradian	W m^-2 sr^-1	W m-2 sr-1
watts per square meter per steradian per centimeter	W m^-2 sr^-1 cm^-1	W m-2 sr-1 cm-1
watts per square meter per steradian per meter	W m^-2 sr^-1 m^-1	W m-2 sr-1 m-1
watts per cubic meter per steradian	W m^-3 sr^-1	W m-3 sr-1
siemens per meter	S m^-1	S/m
square degrees	degree^2	deg2
becquerel seconds per cubic meter	Bq s m^-3	Bq s m-3
decibels per meter	dB m^-1	dB/m
decibels per degree	dB degree^-1	dB/deg
pH unit	pH unit	pH unit
N units	N units	N units

Notes:

(1) The international system of units, Système International d'Unités, SI, was established by the eleventh General Conference on Weights and Measures in 1960, and extended at the 1980 conference.

There are seven base units, two dimensionless supplementary units and a set of prefixes for decimal scaling. These may be combined to give compound units. Some compound units have

      special names, and are called derived Units.

(2) When documenting compound SI units, each symbol for each base unit has been separated from the others by a space. There is no space between the unit and any prefix or exponent.

Any prefix establishes a new unit to which any exponent applies (e.g. km² = (km)² = m⁶ not k(m²) = m⁵). Prefixes must be in the case specified. The full name of the unit must not start

      with an upper case letter. If the solidus (/) is used, there must be only one. There is no space before or after it.

(3) Prefixes beyond exa and atto have been proposed but not yet adopted. Use of the prefixes hecto, deka, deci and centi is discouraged.

(4) Prefixes generally should not be used with units having non-decimal multiples and sub-multiples, such as units of time and angle, or with knots and nautical miles.

(5) Non-WMO abbreviations with limited character sets taken from ISO 2955-1983. Other abbreviations try to be consistent with this.

(6) The decibel is one tenth of a bel, which is the decimal logarithm of a ratio of two powers. Frequently, suffixes are supplied to indicate information about one of the

      quantities in the ratio, such as dB(mW), dBm, dBW, dBmW, dB(μV/m). It is recommended that only dB is used, with the full meaning of the ratio explained, including

      reference levels.

(7) This list consists of the units not mentioned previously that occur in existing WMO Manuals.

(8) The abbreviation for degrees Celsius proposed for WMO use, C, could be confused with Coulombs. In this case, Amperes second should be used instead.

(9) Dobson Unit = DU. One Dobson Unit corresponds to a layer of 0.01 mm of pure ozone, if the whole column of atmosphere were compressed at P=1013 hPa and T = 0°C.

COMMON CODE TABLE C-7: Tracking technique/status of system used

Code Table 0 02 014 in BUFR

Code figure
0	No wind finding
1	Automatic with auxiliary optical direction finding
2	Automatic with auxiliary radio direction finding
3	Automatic with auxiliary ranging
4	Not used
5	Automatic with multiple VLF-Omega signals
6	Automatic cross chain Loran-C
7	Automatic with auxiliary wind profiler
8	Automatic satellite navigation
9-18	Reserved
19	Tracking technique not specified
	TRACKING TECHNIQUE/STATUS OF ASAP SYSTEM
	STATUS OF SHIP SYSTEM
20	Vessel stopped
21	Vessel diverted from original destination
22	Vessel's arrrival delayed
23	Container damaged
24	Power failure to container
25-28	Reserved for future use
29	Other problems
	SOUNDING SYSTEM
30	Major power problems
31	UPS inoperative
32	Receiver hardware problems
33	Receiver software problems
34	Processor hardware problems
35	Processor software problems
36	NAVAID system damaged
37	Shortage of lifting gas
38	Reserved
39	Other problems
	LAUNCH FACILITIES
40	Mechanical defect
41	Material defect (hand launcher)
42	Power failure
43	Control failure
44	Pneumatic/hydraulic failure
45	Other problems
46	Compressor problems
47	Balloon problems
48	Balloon release problems
49	Launcher damaged
	DATA ACQUISITION SYSTEMS
50	R/S receiver antenna defect
51	NAVAID antenna defect
52	R/S receiver cabling (antenna) defect
53	NAVAID antenna cabling defect
54-58	Reserved
59	Other problems
	COMMUNICATIONS
60	ASAP communications defect
61	Communications facility rejected data
62	No power at transmitting antenna
63	Antenna cable broken
64	Antenna cable defect
65	Message transmitted power below normal
66-68	Reserved
69	Other problems
70	All systems in normal operation
71	Nested tracking disabled
72-98	Reserved
99	Status of system and its components not specified
100-126	Reserved
127	Missing value