Non-IFS observation processing (OBSPROC): General overview

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IFS documentation Front Page

Table of contents
Chapter 1. Non-IFS observation processing (OBSPROC): General overview

Chapter 2. Observations: Types, variables and error statistics

Chapter 3. CMA creation (MAKEMA)

Chapter 4. The FEEBACK task

Chapter 5. The TOOLS task

Chapter 6. Central-memory array (CMA) structure/format

Chapter 7. BUFR feedback data structure/format

Chapter 8. SIMULATED-observations data structure/format

Chapter 9. NAMELISTS

Chapter 10. Processing of scatterometer data

REFERENCES

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6.5 Code-description sections (CDS)

In subsections 6.5.1 - 6.5.15 codes connected to different variables are described. The codes are mainly referred to through pointers. In those cases when pointers exists they are positioned in brackets next to the code figure.

6.5.1 CDS type of section

Table 6.42 Type of section
Code figure	Description
1 (NINTESC)	Integer section
2 (NREALSC)	Real section
3 (NCHARSC)	Character section

6.5.2 CDS Type of Variational Analysis

Table 6.43 Type of variational analysis
Code figure	Description
1	Canari run (French O.I.)
3	3D-VAR
4	4D-VAR

6.5.3 CDS IFS configuration number

Table 6.44 IFS configuration number
Code figure	Description
101	4D-VAR with 3D prim. eq. model
111	4D-VAR prim. eq. tangent linear model
121	4D-VAR with shallow water model
122	4D-VAR with vorticity equation model
123	4D-VAR with linear gravity wave model
131	Incremental 4D-VAR
151	3D-VAR
701	Optimal interpolation with Canari

6.5.4 CDS satellite-identity codes

Table 6.45 Satellite identity codes
Code figure	Description
208 (NNOAA10T)	NOAA10 TOVS
235 (NNOAA10S)	NOAA10 SATEM
201 (NNOAA11T)	NOAA11 TOVS
236 (NNOAA11S)	NOAA11 SATEM
202 (NNOAA12T)	NOAA12 TOVS
237 (NNOAA12S)	NOAA12 SATEM
206 (NNOAA14T)	NOAA14 TOVS
239 (NNOAA14S)	NOAA14 SATEM
202 (NNDMSP8)	DMPSP8
203 (NNDMSP9)	DMPSP9
204 (NNDMSP10)	DMPSP10
205 (NNDMSP11)	DMPSP11
245 (NNDMSP12)	DMPSP12
246 (NNDMSP14)	DMPSP14

6.5.5 CDS observation-type and observation-code-type codes

Table 6.46 Observation-type and observation-code-type codes
Observation type	Observation code	Observation code-type description	Observation code-type code
SYNOP	1 (NSYNOP)	Land observation Land automatic observation Ship observation Ship abbreviates observation Shred observation Automatic ship observation	11 (NSRSCD) 14 (NATSCD) 21 (NSHSCD) 22 (NABSCD) 23 (NSHRED) 24 (NATSHS)
AIREP	2 (NAIREP)	Aircraft observation CODAR observation COLBA observation AMDAR observation ACAR observation Simulated observation	141 (NAIRCD) 41 (NCODAR) 241 (NCOLBA) 144 (NAMDAR) 145 (NACARS) 142 (NSIMAI)
SATOB	3 (NSATOB)	SATOB observation SST observation	88 (NSTBCD) 188 (NSST)
DRIBU	4 (NDRIBU)	DRIBU observation BATHY observation TESAC observation ERS1 as DRIBU observation	165 (NDRBCD) 63 (NBATHY) 64 (NTESAC) 160 (NDERS1)
TEMP	5 (NTEMP)	Land observation Ship observation Drop sonde observation ROCOB observation ROCOB ship observation Mobile observation Simulated TEMP observation	35 (NLDTCD) 36 (NSHTCD) 135 (NTDROP) 39 (NROCOB) 40 (NROCSH) 37 (NMBTMP) 137 (NSIMTE)
PILOT	6 (NPILOT)	Land observation Ship observation Wind-profiler	32 (NLDPCD) 33 (NSHPCD) 34 (NWPPCD)
SATEM	7 (NSATEM)	SATEM observation High resolution satellite observation High res. sim. DWL satellite obs. High res. sim. TOVS satellite obs. GTS BUFR SATEM observation GTS BUFR SATEM clear radiance observation GTS BUFR SATEM retr. prof. and clear rad. rep. High res. 80 km BUFR non GTS SATEM retr. prof. High res. 80 km BUFR non GTS SATEM clear rad. rep. High res. 80 km BUFR non GTS SATEM prof. and clear rad. rep. SSM/I observation	86 (NSTMCD) 186 (NSTOVS) 185 (NSTDWL) 184 (NSTTOV) 200 (NGTSTB) 201 (NGTST1) 202 (NGTST2) 210 (NGTHRB) 211 (NGTHR1) 212 (NGTHR2) 215 (NSSMI)
PAOB	8 (NPAOB)	PAOB observation	180 (NPABCD)
Scatterometer	9 (NSCATT)	Scatterometer 1 observation Scatterometer 2 observation Scatterometer 3 observation	8 (NSCAT1) 122 (NSCAT2) 210 (NSCAT3)
Raw Radiance	10 (NRARAD)	Raw Radiances 1 observation	1 (NRARA1)

6.5.6 CDS variable-number codes

Directly after the variable description the units of the variables are described in brackets. In the case of coded information in this table it is referred to WMO code table numbers. The corresponding code table can be found in WMO Manual on Codes, vol 1.2.

Table 6.47 Variable-number codes
Code figure	Description
1 (NVNUMB(3))	Geopotential (m²/s²)
2 (NVNUMB(8))	Upper air temperature (K)
3 (NVNUMB(1))	Upper air u-component (m/s)
4 (NVNUMB(2))	Upper air v-component (m/s)
5 (NVNUMB(54))	Wind shear, du/dz (1/s)
6 (NVNUMB(55))	Wind shear, dv/dz (1/s)
7 (NVNUMB(63))	Specific humidity (kg/kg)
8 (NVNUMB(66))	Vertical speed (m/s)
9 (NVNUMB(6))	PWC (precipitable water content) (kg/m² )
11 (NVNUMB(12))	Surface temperature (K)
19 (NVNUMB(58))	Layer relative humidity (%)
29 (NVNUMB(5))	Upper air relative humidity (%)
30 (NVNUMB(13))	Pressure tendency (Pa/3h)
39 (NVNUMB(10))	2m temperature (K)
40 (NVNUMB(11))	2m dew point (K)
41 (NVNUMB(56))	10m u-component (m/s)
42 (NVNUMB(57))	10m v-component (m/s)
56 (NVNUMB(67))	Virtual temperature (K)
57 (NVNUMB(3))	Thickness (m²/s²)
58 (NVNUMB(7))	2m relative humidity (%)
59 (NVNUMB(9))	Upper air dew point (K)
60 (NVNUMB(14))	Past wheather, W (code) WMO 4561
61 (NVNUMB(15))	Present wheather, ww (code) WMO 4677
62 (NVNUMB(16))	Visibility, V (code) WMO 4300
63 (NVNUMB(17))	Type of high clouds, C_H (code) WMO 0509
64 (NVNUMB(18))	Type of middle clouds, C_M (code) WMO 0515
65 (NVNUMB(19))	Type of low clouds, C_L (code) WMO 0513
66 (NVNUMB(20))	Cloud base height (N_h) (code) WMO 2700
67 (NVNUMB(21))	Low cloud amount (N) (code) WMO 2700
68 (NVNUMB(22))	Additional cloud group height (h_sh_s) (m)
69 (NVNUMB(23))	Additional cloud group type (C) (code) WMO 0500
70 (NVNUMB(24))	Additional cloud group amount (N_s) (code) WMO 2700
71 (NVNUMB(25))	Snow depth (S_d) (m)
72 (NVNUMB(26))	State of ground (E) (code) WMO 0901
73 (NVNUMB(27))	Ground temperature (T_gT_g) (K)
74 (NVNUMB(28))	Special phenomena (S_pS_p) (code) WMO 3778
75 (NVNUMB(29))	Special phenomena (s_ps_p) (code) WMO 3778
76 (NVNUMB(30))	Ice code type (R_s) (code) WMO 3551
77 (NVNUMB(31))	Ice thickness (E_sE_s) (m) (code) WMO 1751
78 (NVNUMB(32))	Ice (I_s) (code) WMO 1751
79 (NVNUMB(33))	Time period of rain information (t_rt_r) (hour)
80 (NVNUMB(34))	6 hr rain amount (liquid part) (kg/m²)
81 (NVNUMB(35))	Max. temperature (JJ) (K)
82 (NVNUMB(36))	Ship speed (V_s) (m/s)
83 (NVNUMB(37))	Ship direction (D_s) (degrees)
84 (NVNUMB(38))	Wave heigh (H_wH_w) (m)
85 (NVNUMB(39))	Wave period (P_wP_w ) (s)
86 (NVNUMB(40))	Wave direction (D_wD_w) (degrees)
87 (NVNUMB(41))	General cloud group (code) WMO 20012
88 (NVNUMB(42))	Relative humidity from low clouds (%)
89 (NVNUMB(43))	Relative humidity from middle clouds (%)
90 (NVNUMB(44))	Relative humidity from high clouds (%)
91 (NVNUMB(45))	Total amount of clouds (code) WMO 20011
92 (NVNUMB(46))	6 hr snow fall (solid part of the rain) (m)
110 (NVNUMB(47))	Surface pressure (Pa)
111 (NVNUMB(48))	Wind direction (degrees)
112 (NVNUMB(49))	Wind force (m/s)
119 (NVNUMB(50))	Brightness temperature (K)
120 (NVNUMB(51))	Raw radiance (K)
121 (NVNUMB(52))	Cloud amount from satellite (%)
122 (NVNUMB(53))	Sigma0 scatterometer backscatter (dB)
123 (NVNUMB(60))	Cloud liquid water (kg/kg)
124 (NVNUMB(61))	Ambigous V-component (m/s)
125 (NVNUMB(62))	Ambigous U-component (m/s)
126 (NVNUMB(64))	Ambigous wind direction (degrees)
127 (NVNUMB(65))	Ambigous wind speed (m/s)
130 (NVNUMB(68))	Ozone (DU)
200 (NVNUMB(59))	Aux. variable (numeric)

6.5.7 CDS vertical-coordinate type

Table 6.48 Vertical coordinate type
Code figure	Description
1 (NPRESVC)	Pressure vertical coordinate
2 (NHEIGVC)	Height vertical coordinate
3 (NTOVCVC)	TOVS channel
4 (NSCATCVC)	Scatterometer channel

6.5.8 CDS instrument-type codes

DRIBU/TEMP/PILOT/SATEM/SCATTEROMETER/PAOB/RAW RADIANCE:

Instrument type codes are not defined.

SYNOP/AIREP:

Table 6.49 Instrument type codes: synop/airep
Code figure	Description
32 (NSYNINTP)	Synop instrument type
32 (NSHPINTP)	Ship instrument type
32 (NACFINTP)	Airep instrument type

SATOB:

Table 6.50 Instrument type codes: satob
Code figure	Description
60 (NSTBITGO)	GOES
62 (NSTBITME)	Meteosat
63 (NSTBITIN)	Indian SATOB
68 (NSTBITJA)	JAPAN

6.5.9 CDS 5.5.14 retrieval codes

Table 6.51 Retrieval codes
Code figure	Description
1 (NCLEAR)	Clear
2 (NPCLOU)	Partly cloudy
3 (NCLOUD)	Cloudy

6.5.10 CDS geographical-area codes

CONVENTIONAL OBSERVATIONS:

Table 6.52 Geographical area codes: conventional observations
Bit	Description
1	Northern Hemisphere (20N-90N)
2	Southern Hemisphere (20S-90S)
3	Tropics (20S-20N)

SATOB:

Table 6.53 Geographical area codes: satob
Bit	Description
1	Meteosat
2	Insat
3	Himawari
4	GOES
5	Un-identified

SATEM:

For SATEM the purpose of the geographical-area codes is to separate between different satellites.

6.5.11 CDS SATOB I1 codes, name of country

Table 6.54 SATOB I1 codes, name of country
Code figure	Description
0 (NSBI1(1))	Europe
1 (NSBI1(2))	Japan
2 (NSBI1(3))	USA
3 (NSBI1(4))	USSR
4 (NSBI1(5))	India

6.5.12 CDS SATOB I2I2 codes, satellite-indicator figure

Table 6.55 SATOB I2I2 codes, satellite-indicator figure
Code figure	Description
4 (NSBI2I2(1))	Meteosat
177 (NSBI2I2(2))	Pretoria
0 (NSBI2I2(3))	Goes
3 (NSBI2I2(4))	Japan
20 (NSBI2I2(5))	India

6.5.13 CDS SATEM TOVS A, B, C, V, W, X, Y codes

TOVS A CODES

Table 6.56 TOVS A codes
Code figure	Description
0	No HIRS/2 data
1	Clear radiances are derived from clear spots
2	Clear radiances are derived from the N* method

TOVS B CODES

Table 6.57 TOVS B codes
Code figure	Description
0	No HIRS/2 data
1	All HIRS/2 channels were used
2	Tropospheric HIRS/2 channels were unusable due to clouds and only stratospheric channels were used

TOVS C CODES

Table 6.58 TOVS C codes
Code figure	Description
0	Statistical retrieval method used
1	Minimum information retrieval used
2	Minimum information retrieval attempted but statistical retrieval used

TOVS V CODES

Table 6.59 TOVS V codes
Code figure	Description
0	No retrieval
1	HIRS+MSU
2	HIRS

TOVS W CODES

Table 6.60 TOVS W codes
Code figure	Description
0	No retrieval
1	HIRS+MSU
2	HIRS

TOVS X CODES

Table 6.61 TOVS X codes
Code figure	Description
0	No retrieval
1	HIRS(1, 2, 3, 8, 9, 16, 17)+MSU(4)
2	HIRS(1, 2, 3, 8, 9, 16, 17)
3	HIRS(1, 2, 3, 9, 17)+MSU(4)
4	HIRS(1, 2, 3, 9, 17)

TOVS Y CODES

Table 6.62 TOVS Y codes
Code figure	Description
0	No retrieval
1	HIRS+SSU+MSU(3, 4)
2	HIRS+MSU(3, 4)
3	SSU+MSU(3, 4)

TOVS Z CODES

To be defined.

6.5.14 1D-VAR SSM/I surface-type quality control

Table 6.63 1D-VAR ssm/i surface type quality control
Code figure	Description
0	Surface type derived from model land/sea mask is sea surface
1	Surface type derived from model land/sea mask is land surface
2	Surface type derived from model surface temperature is ice surface
3	SSM/I observed brightness temperatures are out of physical bounds

6.5.15 1D-VAR failure indicator

If the code figure is 0 the 1D-VAR minimization went OK, otherwhise something went wrong.

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16.04.2002