R.R.S. Discovery II 



1990—1996 



1990 



coiit. 



Age of 

 moon 

 (days) 



HYDROLOGICAL OBSERVATIONS 



Depth 



(metres) 



1991 



1992 



28 



29 



1993 



1994 



29 



1995 



1996 



■S o 

 Q " 



400 



590^ 

 790- 



990' 

 1490' 

 1990' 

 2490' 

 2980I 



o 

 10 

 20 



30 

 40 



50 



60 



80 



:oo 



150 



200 



300 



400 



600^ 



800^ 



1000^ 



1500^ 



2000^ 



2500' 



2890I? 



o 

 10 

 20 



30 

 40 



5° 



60 



80 



100 



ISO 



200 



300 



400 



590' 



790' 



990 



1490 



1990 



2490 



2980 



o 

 10 

 20 



30 

 40 



50 



60 



80 



100 



791 



994 



2983 



1501 



2893 



Temp 

 'C. 



S'l,. 



1-47 

 1-57 

 1-32 

 I -06 

 066 

 0-38 

 016 

 -0-03 



1-27 



I-2I 

 1-22 

 1-22 

 1-22 

 I-I2 



0-59 



0-52 



-0-99 



-0-98 



-o-i6 



0-33 

 0-41 

 0-48 

 0-41 



0-37 

 o-i6 



-O-02 

 -0-I2 



-0-I4 

 0-91 



pH 



Mg. — atom m,* 



Nitrite 



N, 



34-65 

 34-72 

 34-72 

 34-72 

 34-72 

 34-71 

 34-70 

 34-70 



34-11 



34-02 

 34-02 

 34-02 

 34-02 

 34-02 

 34-02 

 34-07 

 34-12 

 34-20 

 34-36 

 34-54 

 34-65 

 34-66 

 34-69 

 34-70 

 34-70 

 34-70 

 34-70 

 34-69 

 3469 



33-82 



27-75 

 27-80 

 27-82 



27-84 

 27-86 

 27-88 

 27-S8 

 27-88 



27-29 



788 

 995 



2981 



-o-i» 



— 0-19 



— 0-19 



— 0-19 



-0-37 

 -1-19 

 -1-49 



-1-79 

 -1-79 



-0-77 

 0-04 



0-43 

 0-4S 

 0-51 



0-37 



0-28 



o-o8 



-0-13 



-0-28 



-0-35 



-0-51 



-0-78 

 -0-79 

 -0-80 

 -0-88 

 -1-59 

 -1-79 

 -1-85 

 -1-89 



27 

 27 

 27 

 27 



27 

 27 

 27- 

 27- 

 27- 



27' 



27- 

 27 

 27 

 27 

 27 



27 

 27 

 27 

 27 

 27 



7-93 

 7-96 



7-96 



8-04 

 8-04 

 8-02 

 8-04 

 8-22 



8-16 

 8-16 

 8-16 

 8-16 

 8-16 

 8-16 



8-13 

 8-o6 

 8-05 

 8-00 

 7-98 

 7-96 

 7-96 

 8-01 

 8-OI 

 8-06 

 8-07 

 8-07 

 8-IO 

 8-19 



33-76 

 33-76 

 33-76 

 33-76 

 33-83 

 34-05 

 34-15 

 34-29 

 34-34 

 34-51 

 34-64 

 34-70 

 34-70 

 34-70 

 34-70 

 34-70 

 34-69 

 34-68 



34-67 

 34-67 



34-27 



33-45 

 33-45 

 33-45 

 33-45 

 34-01 



34-30 

 34-34 

 34-34 

 34-39 



27-13 



27-14 

 27-14 

 27-14 

 27-14 

 27-21 

 27-41 



27-51 

 27-62 

 27-66 



27-77 

 27-84 

 27-87 

 27-87 

 27-86 



27-87 

 27-86 



27-87 

 27-88 

 27-88 

 27-88 



27-56 



26-91 

 26-91 

 26-91 

 26-92 



27-39 

 27-63 

 27-67 

 27-67 

 27-71 



8-20 

 8-20 

 8-20 

 8-20 

 8-17 

 8-08 

 8-06 

 8-04 

 8-03 

 7-96 

 7-95 

 7-94 

 7-93 

 7-94 

 7-95 

 8-00 

 8-06 

 8-06 

 8-03 

 8-21 



2-68 

 2-68 

 2-66 

 2-66 

 2-66 

 2-66 

 2-66 

 2-66 



1-52 

 1-50 

 1-44 

 1-50 

 1-50 



1-54 



1-77 

 2-19 

 2-30 

 2-36 

 2-47 

 2-55 

 2-59 

 2-60 

 2-66 

 2-66 

 2-76 

 2-76 

 2-76 

 76 



1-16 

 1-16 

 1-16 

 1-14 

 1-31 

 2-01 

 2-13 

 2-24 

 2-24 

 2-40 

 2-59 

 2-59 

 2-59 

 2-68 



2-74 

 2-74 

 2-76 

 2-76 

 2-76 

 2-76 



8-18 

 8-i8 

 S-18 

 8-18 

 8-06 

 8-05 

 8-03 

 8-02 



8-02 



0-89 

 0-87 

 0-87 

 0-93 

 2-17 

 2-09 

 2-17 

 2-17 



2-17 



0-34 

 0-35 

 0-35 

 0-34 

 0-35 

 0-35 

 0-34 

 0-32 

 0-31 

 o-io 

 o-o6 

 0-00 

 0-00 



0-35 

 0-35 

 0-35 

 0-35 

 0-32 

 0-23 

 0-22 

 0-24 

 0-22 

 o-oo 

 0-00 

 o-oo 

 0-00 



0-35 



0-35 

 0-36 



036 

 0-17 

 0-14 

 0-14 

 0-20 

 0-I7 



Si 



O, 

 c.c. 

 litre 



BIOLOGICAL OBSERVATIONS 



4-24 

 4-08 

 4-19 

 4-32 

 4-36 



4-54 

 4-70 

 4-69 



7-29 

 7-32 

 7-30 

 7-29 



7-07 

 6-16 

 5-16 



4-75 

 4-62 



4-43 

 4-43 

 4-36 

 4-60 

 4-80 

 4-88 

 4-80 



7-76 



7-71 



7-56 



6-88 



6-47 

 5-28 

 4-52 

 4-26 



4-24 

 4-20 



4-24 

 4-33 

 4-54 

 4-So 



5-03 

 5-01 



7-91 



7-89 

 6-98 



6-59 



6-47 



N 100 B 



Depth 

 (metres) 



27o-i6o( — o) 



TYFB 



NHP 



N50V 

 NiooH 

 N 100 B 

 N 100 B 



TYFB 



N 100 H 



NHP 



N50V 

 N70V 



NiooH 

 N70B 



N 100 B 

 N70B 



NiooB 



TYFB 



NHP 



N50V 



N70V 



NiooH 



TIME 



230s 



I 500-1000 



50-0 

 1 00-0 



0-5 

 I 19-0 



330-158 



0957 



2014 



2302 

 2306 

 2306 



2340 



950-650 

 0-5 



50-0 

 1 00-0 

 1000-750 

 750-500 

 500-250 

 250-100 

 100-50 



50-0 



0-5 



112-0 



254-166 

 254-i66( — o) 



0945 

 1043 



2009 



1 800-1 300 



50-0 



100-0 



1000-750 



750-500 



500-250 



250-100 



100-50 



50-0 



0-5 



2255 



2300 



2300 

 2300 



1007 



2010 



Remarks 



DGP 



1045 



2026 

 2322 

 2326 

 2336 



DGP 



KT 

 DGP 



1020 

 1103 



2345 



2210 

 2315 

 2320 



2330 



2335 



DGP 



KT 

 DGP 



1040 



2243 

 0005 



DGP. 4- 2 hours 



167 



