Delayed Mode Quality Control for Argo float WMO 6900768

Repo on Delayed Mode o A go loa WMO 6900768 ARGO ESPA ˜ NA - IEO / 17 - 14 Delayed Mode Quali y Con ol o A go loa WMO 6900768 Feb ua y 8, 2017 A. Gonz´alez-San ana - P. V´elez-Belch´ı Ins i u o Espa˜nol de Oceanog a ´ıa 1 In oduc ion The Delayed Mode Quali y Con ol (DMQC) has been de eloped o loa WMO 6900768 and deli e ed on 19/12/2016 o i eme . An anomalous p o ile (numbe 115) was de ec ed du ing i s ini ial analysis in he 142 p o iles ca ied ou . T ansmision sys em ARGOS T ansmission ID 88347 2685 Pla o m Model APEX APF9A 6325 Pla o m ID 4403 Senso s SBE41CP SBE41CP SBE41CP Senso es s/n n/a n/a n/a Da a Cen e (Fo ma Ve sion) IF (3.1) P ojec Name ARGO SPAIN (Malaspina) Da a Cen e (Fo ma Ve sion) IF (3.1) P ojec Name ARGO SPAIN (Malaspina) Floa Owne PI Name Ped o Joaquin VELEZ BELCHI Pa king Dep h (dba ) 1000 P o ile dep h (dba ) 2000 Numbe o P o iles 142 S a us Inac i e Deploymen Da e 27-Dec-2010 00:00:00 Deploymen Posi ion La 12.51 Lon -26.07 Las Su acing Da e 07-No -2014 11:38:45 Deployed Posi ion La 9.50 Lon -30.46 Age (yea s) 3.9 Vol age ( ) 11.035 Posi ioning Sys em Senso s CTD-PRES,CTD-TEMP,CTD-CNDC Table 1. Technical in o ma ion o he loa . Se e al checks we e pe o med: P essu e alues we e s udied o a oid possible TNDP anomalies. The The mal Mass E o was also calcula ed in o de o a oid possible e o s due o he empe a u e g adien s. The Owens and Wong Objec i e Mapping Analysis (2003) was applied o achie e an op imum calib a ion o he salini y. 2 2 Salini y co ec ion om he OW me hod Owens and Wong Objec i e Mapping Analysis (2003): This calib a ion model assumes ha salini y measu emen s d i slowly o e ime. To co ec possible salini y d i s, he model makes use o adjacen p o iles (a ime se ies) o es ima e a ime- a ying mul iplica i e co ec ion e m ” ” by i ing o he es ima ed clima ological po en ial conduc i i ies on he a su aces. The inclusion o con empo a y high quali y calib a ed hyd og aphic da a wi h egional empe a u e - salini y ela ionships (by using nea by his o ical hyd og aphic da a) helps o de e mine whe he a measu ed end is due o senso d i o due o na u al a iabili y. A e manual e alua ion and inspec ion, a po en ial d i was de ec ed a abou hal o he salini y signal ( igu e 7). Al hough he signal is wi hin he e o h eshold (0.02 PSU oughly), Owens and Wong calib a ion has been de eloped wi h a b eak poin adjus men = 3. Acco ding o A go Quali y Con ol Manual: PSAL ADJUSTED = PSAL (o iginal alue), PSAL ADJUSTED ERROR = Unce ain y p o ided by PI, PSAL ADJUSTED QC = 1, 2 o 3. The ollowing pa ame e s has been se up o he Owens and Wong Objec i e Mapping Analysis me hod: Con ig max cas s 142 use p 0 scale long la ge 2 scale la la ge 2 scale long small 1 scale la small 1 scale phi small 0 scale phi la ge 0 scale age 10 p del a 250 p exclude 200 Table 2. Owens and Wong Objec i e Mapping Analysis me hod pa ame e s . 3 Figu e 1: A go loa ajec o y (a). T-S Diag am (b). Po en ial Tempe a u e p o iles (c). Salini y p o iles (d). 4 Figu e 2: Po en ial empe a u e and salini y sec ions. 5 Figu e 3: P essu e eco d (a). Vol age eco d (b). 6 320 325 330 335 340 345 0 5 10 15 20 Longi ude La i ude 6900768 p o ile loca ions wi h his o ical da a 1 1121 31 41 51 61 71 81 91 101 111 121 131 141 loa his o ical poin s Figu e 4: His o ical poin s a ound he cu en ARGO loa ajec o y. These his o ical poin s a e used by Owens and Wong Objec i e Mapping Analysis o make a model o an ARGO loa da a calib a ion. 7 5 10 15 20 25 35 35.5 36 36.5 θ ° C Salini y (PSS−78) 6900768 uncalib a ed loa da a (−) and mapped salini y (o) wi h objec i e e o s 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96 101 106 111 116 121 126 (a) T-S Diag am 5 10 15 20 25 35 35.5 36 36.5 θ ° C Salini y (PSS−78) 6900768 calib a ed loa da a (−) and mapped salini y (o) wi h objec i e e o s 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96 101 106 111 116 121 126 (b) T-S Diag am a e a po en ial calib a ion Figu e 5: Bo h g aphs show T-S diag ams be o e and a e a po en ial calib a ion. This is use ul o iden i y wa e masses, o de ec some possible o se s o o iden i y some anomalous p o iles. 8 0 20 40 60 80 100 120 140 0.9994 0.9996 0.9998 1 1.0002 1.0004 1.0006 1.0008 6900768 po en ial conduc i i y (mmho/cm) mul iplica i e co ec ion wi h e o s 2 x cal e o 1 x cal e o 1−1 p o ile i 0 20 40 60 80 100 120 140 −0.02 −0.01 0 0.01 0.02 0.03 loa p o ile numbe ∆ S 6900768 e ically−a e aged salini y (PSS−78) addi i e co ec ion ∆ S wi h e o s 2 x cal e o 1 x cal e o 1−1 p o ile i Figu e 6: Salini y a ia ion be ween each p o ile. Owens and Wong Objec i e Mapping Analysis builds i s model based in a p og ammed numbe o b eak poin s. 9