Untitled Document

Data of the AARI and of the National Oceanographic Data Center- World Data Center - A(NODC) were used for creation of the complete historical data set of Russian and western observations. The NODC data set was collected from different sources including the Russian ones. Information on metadata is given in Appendix 2.

ASCII-file AO_chem.txt contains next hydrochemical observations data columns during 1948-2000 years. The data columns divided with tab symbol in this file

Number of column | Name of column in file (As seen in first row of file AO_chem.txt) | Parameters and discription | Format
1 | Cruise | Expedition (cruise) or code of expedition (cruise) | Symbol (max lenght of 19 positions)
2 | Station | Number of station in cruise | Symbol(max lenght of 8 positions)
3 | Type | Type of station (Â - bathometric; C- CTD–sounding) | Symbol (max lenght of 1 positions)
4 | mon/day/yr | Data of observation (month/day/year) | MM/DD/YYYY (MM-month; DD-day; YYYY-year) (always 10 positions)
5 | Lon (°E) | Longtitude of station (integer degrees and one hundred thousands part of degrees measured in 360 degrees system) | DDD.ddddd (DD-integer degrees; ddddd- one hundred thousands part of degrees )
6 | Lat (°N) | Latitude of station (integer degrees and one hundred thousands part of degrees) | DDD.ddddd (DD-integer degrees; ddddd- one hundred thousands part of degrees
7 | Bot. Depth [m] | Bottom Depth[m] | HHHH.h (HHHH-integer meters; h-tens part of meters). The value 9999.9 is Absence data of bot.depth at station
8 | Depth [m] | Depth of observation [m] | LLLL.l (LLLL- integer meters; l-tens part of meters) .
9 | QF | Flag of reliability depth observation value | Integer (everywhere are 1 as uknown
10 | Oxygen [ml/l] | Value of disolved Oxygen [ml/l] On the depth of observation | PP.ppppp (PP-integer; ppppp-ten thousands parts ). Symbol of blank space is an absence data observation hydrochemical parameter at this depth
11 | QF | Flag of reliability value of oxygen observation value | Integer (everywhere is 1 as unknown)
12 | Phosphate [~$m~#mol/l] | The value of phosphate [m mol/l] on depth of observation | PP.pppppppp (PP-integer; pppppppp-one hundred millions parts). Blank space symbol is absence data observation hydrochemical parameter at this depth .
13 | QF | Reliability flag of phosphate value | Integer (everywhere is 1 as unknown)
14 | Silicate [~$m~#mol/l] | The values of dissolved Silicate [m mol/l] at observation depth | PPP.pppppppp (PP-integer; pppppppp- one hundred millions parts). Blank space symbol is absence data observation hydrochemical parameter at this depth .
15 | QF | Reliability flag of silicate value | Integer (everywhere is 1 as unknown)
16 | Nitrate [~$m~#mol/l] | The values of dissolved Nitrate [m mol/l] at observation depth | PP.ppppppppp (PP-integer; ppppppppp-one milliards parts). Blank space symbol is absence data observation hydrochemical parameter at this depth .
17 | QF | Reliability flag of nitrate value | Integer (everywhere is 1 as unknown)
18 | Nitrite [~$m~#mol/l] | The values of dissolved Nitrite [m mol/l] at observation depth | PP.pppppppp (PP-integer; pppppppp- one hundred millions parts). Blank space symbol is absence data observation hydrochemical parameter at this depth .
19 | QF | Reliability flag of nitrite value | Integer (everywhere is 1 as unknown)
20 | pH~_B~# [pH units by Buch] | The values of hydrogen indicator pHB [accounting unit pH by Buch] | P.ppp (PP-integer; ppp-one thousands parts). Blank space symbol is absence of data observation hydrochemical parameter at this depth .
21 | QF | Reliability flag of hydrogen indicator value | Integer (everywhere is 1 as unknown)
22 | Alkalinity [mg-eq/l] | The values of alkalinity [mg-eq/l] at depth observation | P.pppp (P-integer; pppp-ten thousands parts). Blank space symbol is absence of data observation hydrochemical parameter at this depth
23 | QF | Reliability flag of alkalinity value | Integer (everywhere is 1 as unknown)