TNDP detection and treatment

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

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

TNDP detected, and Reponses in D files

TNDP [Apex floats only]

	AOML	BODC	CORIOLIS	CSIRO	GTS	JMA	MEDS	CSIO	INCOIS	KMA	KORDI	Total all DACs
# floats	1678	286	474	323	1	795	263	52	168	133	79	4252
Trunc & known offset	1034	244	401	208	-	673	217	42	139	104	-	3062
Floats apparently truncating and known offset, but corrected SP is negative at some stage
Very few -ve SP	27	1	-	1	-	11	12	5	1	2	-	60
more -ve SPs	1	-	-	-	-	652	2	-	-	-	-	655
min SP > -1	3	-	-	1	-	1	5	-	1	1	-	12
min SP = -5	13	1	-	-	-	546	1	2	-	-	-	563
min SP < -5	-	-	-	-	-	5	5	-	-	-	-	10
Floats with apparent TNDP
TNDP whole series	169	54	52	27	-	8	26	14	34	17	-	401
TNDP part series	290	68	67	47	-	1	40	16	30	16	-	575
Counts of floats with these conditions in TNDP D-file profiles
TNDP in D-files	294	111	70	54	-	3	41	23	52	12	-	660
Some QC=1	293	28	72	45	-	2	40	22	36	13	-	551
Some min(QC)=2	61	96	-	44	-	-	13	-	42	-	-	256
Some min(QC)=3	10	17	-	-	-	-	-	-	-	-	-	27
Some min(QC)=4	82	42	5	12	-	2	5	-	11	-	-	159
Some COMMENTS present	49	22	42	44	-	-	-	-	43	-	-	200
Some COMMENTS absent	266	95	30	11	-	3	41	23	13	12	-	494
Some min err 2.4	253	52	22	31	-	2	37	22	44	11	-	474
Some min err 20	-	13	-	18	-	-	3	-	7	-	-	41
Some not 2.4 or 20	32	43	-	-	-	-	-	-	-	-	-	75

Note: apparently extremely few TNDP detected for JMA. This is because JMA Surface Pressure is usually not raw, but has already been adjusted by -5 dbar (so the majority of SP ~= -5.) We could allow for this in the analysis if desired.

Table updated on 10-Oct-2010

Explanation of categories

All values are the number of floats exhibiting the described conditions for each DAC. The first 4 categories do not distinguish between RT and DM profiles.

# 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.

TNDP whole series - truncating floats with no +ve SP

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

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

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

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

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

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

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

Some TNDP COMMENTS present - floats where some of TNDP profiles have correct pressure SCIENTIFIC_CALIB_COMMENTS for TNDP

Some TNDP COMMENTS absent - - floats where some of TNDP profiles do NOT have correct pressure SCIENTIFIC_CALIB_COMMENTS for TNDP

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

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

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