TNPD detection and treatment

This page is automatically created by code which scans all files in the Coriolis GDAC.

Plots and listings analysing the Surface Pressure for TNPD floats for each DAC are accessed through the Plots Index Tables.

TNPD detected, and Reponses in D files

TNPD

	AOML	BODC	CORIOLIS	CSIRO	NMDIS	JMA	MEDS	CSIO	INCOIS	KMA	KORDI	Total all DACs
# floats	4750	430	1577	588	19	1229	367	138	300	168	119	9685
Trunc & known offset	1052	245	416	227	-	678	214	44	139	104	89	3208
Floats apparently truncating and known offset, but corrected SP is negative at some stage (ignoring whether profiles are DM or RT)
Very few -ve SP	33	1	-	3	-	1	13	6	2	2	28	89
more -ve SPs	1	-	-	-	-	5	-	-	-	-	2	8
min SP > -1	4	-	-	1	-	1	5	-	1	1	6	19
min SP = -5	12	1	-	1	-	1	1	2	-	-	3	21
min SP < -5	1	-	-	-	-	-	3	-	-	-	-	4
Floats with apparent TNPD
TNPD whole series	168	50	52	26	-	96	22	14	34	17	17	496
TNPD part series	256	58	57	36	-	154	37	15	27	15	25	680
Counts of floats with these conditions in TNPD D-file profiles
TNPD in D-files	311	98	86	46	-	216	45	28	55	32	-	917
TNPD 6months DM	291	91	73	42	-	191	37	25	52	28	-	830
Some QC=1	189	24	50	32	-	181	29	16	30	17	-	568
Some min(QC)=2	249	89	61	41	-	105	28	27	50	22	-	672
Some min(QC)=3	7	16	-	-	-	19	-	-	-	-	-	42
Some min(QC)=4	88	42	9	10	-	58	7	-	13	4	-	231
Imperfect COMMENTS present	-	-	-	-	-	-	12	-	-	26	-	38
Some COMMENTS present	254	93	61	43	-	106	16	27	51	-	-	651
Some COMMENTS absent	104	22	28	5	-	125	25	3	10	15	-	337
Some min err 2.4	314	86	72	47	-	205	45	16	52	32	-	869
Some min err 20	39	12	27	18	-	28	6	27	7	-	-	164
Some not 2.4 or 20	-	21	-	-	-	-	-	-	-	-	-	21

Table based on GDAC as at 28-Sep-2013

Explanation of categories

All values are the number of floats exhibiting the described conditions for each DAC.

# floats - number of floats in each DAC

Trunc & known offset - floats which are believed (from info in tech and meta files) to be a type which truncates, and for which the fixed firmware surface offset value (eg 5dbar) is known.

Floats apparently truncating and known offset, but corrected SP is negative at some stage - In theory this should not happen, however the occasional small -ve value is not a worry. Frequent or large negatives could arise from the float being wrongly identified as a truncating type. Values of exactly -5 can indicate missing SP reported as 0, or maybe 5dbar offset removed twice!

TNPD whole series - truncating floats with no +ve SP

TNPD part series - truncating floats with no +ve SP after some point

All the following conditions are determined for the D-files only.

TNPD in D-files - floats with TNPD in DM processed profiles (rather than only in profiles which have not yet been DM processed.)

TNPD 6months DM - floats with TNPD in DM processed profiles spanning at least 18 cycles, so would expect TNPD status to be acknowledged.

Some QC=1 - floats with some TNPD profiles with minimum PRES_ADJUSTED_QC==1

Some QC=2 - floats with some TNPD profiles with minimum PRES_ADJUSTED_QC==2

Some QC=3 - floats with some TNPD profiles with minimum PRES_ADJUSTED_QC==3

Some QC=4 - floats with some TNPD profiles with minimum PRES_ADJUSTED_QC==4

Looking for the approved TNPD comment string in the SCIENTIFIC_CALIB_COMMENTS variable. Now allow for the first dimension of that variable, NCALIB to be >1 (thanks to John Gilson). However, I still expect to find the TNPD string in the parts of the variable that correspond to the pressure parameter. That is, we always expect PARAMETER(1,:) = 'PRES', so any comments associated with pressure should be in SCIENTIFIC_CALIB_COMMENTS(n,1,:)

Imperfect COMMENTS present - floats where some profiles have comment containing "ncated" and "TNPD" or "TNDP", but not the full correct string.

Some COMMENTS present - floats where some profiles have correct TNPD comment.

Some COMMENTS absent - - floats where some of TNPD profiles do NOT have a correct or even imperfect TNPD comment.

Some min err 2.4 - floats where some of TNPD profiles have a minimum PRES_ADJUSTED_ERROR of 2.4

Some min err 20 - floats where some of TNPD profiles have a minimum PRES_ADJUSTED_ERROR of 20

Some not 2.4 or 20 - floats where some of TNPD profiles have a minimum PRES_ADJUSTED_ERROR of neither 2.4 nor 20.