CRUISE REPORT: P09 (Updated JUN 2018) Highlights Cruise Summary Information Section Designation: P09 (aka: RF16-06) Expedition designation (ExpoCodes): 49UP20160703 Chief Scientists: Naoki NAGAI/JMA Dates: 2016 JUL 03 - 2016 AUG 24 Ship: R/V RYOFU MARU Ports of call: Leg 1: Tokyo–Palau Leg 2: Palau–Tokyo 34°10.98' N Geographic Boundaries: 136°48.36' E 142°2.91' E 2°17.46' S Stations: 92 Floats and drifters deployed: 1 float, 1 drifter Moorings deployed or recovered: 0 Contact Information: Naoki NAGAI Japan Meteorological Agency (JMA) Global Environment and Marine Department • Marine Division 1-3-4, Otemachi, Chiyoda-ku, Tokyo 100-8122, JAPAN Phone: +81-3-3212-8341 Ext. 4778 • Email: n-nagai@met.kishou.go.jp A. Cruise narrative 1. Highlights Cruise designation: RF16-06 (WHP-P09 revisit) a. EXPOCODE: 49UP20160703 b. Chief scientist: Naoki NAGAI (n-nagai@met.kishou.go.jp) Marine Division Global Environment and Marine Department Japan Meteorological Agency (JMA) 1-3-4, Otemachi, Chiyoda-ku, Tokyo 100-8122, JAPAN Phone: +81-3-3212-8341 Ext. 4778 c. Ship name: R/V Ryofu Maru d. Ports of call: Leg 1: Tokyo–Palau Leg 2: Palau–Tokyo e. Cruise dates: Leg 1: 3 July 2016–27 July 2016 Leg 2: 31 July 2016–24 August 2016 f. Floats and drifters deployed: 1 float 1 drifter 2. Cruise Summary Information RF16-06 cruise was carried out during the period from July 3 to August 24, 2016. The cruise started from the south of Honshu, Japan, and sailed towards south along approximately 137°E meridian. This line (WHP-P9) was observed by JMA in 1994 as WOCE (World Ocean Circulation Experiment) Hydrographic Programme and in 2010 as CLIVAR (Climate Variability and Predictability Project) / GO-SHIP (Global Ocean Ship-based Hydrographic Investigations Program). A total of 92 stations was occupied using a Sea-Bird Electronics (SBE) 36 position carousel equipped with 10-liter Niskin water sample bottles, a CTD system (SBE911plus) equipped with SBE35 deep ocean standards thermometer, JFE Advantech oxygen sensor (RINKO III), Teledyne Benthos altimeter (PSA-916D), and Teledyne RD Instruments L-ADCP (300kHz). To examine consistency of data, we carried out the observation twice at 8°N, 137°E (Stn.59 and 60). Cruise track and station location are shown in Figure 1. At each station, full-depth CTDO2 (temperature, conductivity (salinity) and dissolved oxygen) profile were taken, and at almost all stations except for Stn. 62, up to 36 water samples were taken and analyzed. Water samples were obtained from 10 dbar to approximately 10 m above the bottom. In addition, surface water was sampled by a stainless steel bucket at each station. Sampling layer is designed as so-called staggered mesh as shown in Table 1 (Swift, 2010). The bottle depth diagram is shown in Figure 2. Water samples were analyzed for salinity, dissolved oxygen, nutrients, dissolved inorganic carbon (DIC), total alkalinity (TA), pH, CFC-11, CFC- 12, CFC-113 and phytopigment (chlorophyll-a and phaeopigments). Underway measurements of partial pressure of carbon dioxide (pCO2), temperature, salinity, chlorophyll-a, subsurface current, bathymetry and meteorological parameters were conducted along the cruise track. R/V Ryofu Maru departed Tokyo (Japan) on July 3, 2016. The hydrographic cast of CTDO2 was started at the first station (Stn.1 (34°10’N, 137°E; RF5802)) on July 4. Leg 1 consisted of 59 stations from Stn.1 to Stn.59 (8°N, 137°E; RF5860). Stn.59 was finished on July 23. She called for Palau (Republic of Palau) on July 27 (Leg 1). She left Palau on July 31, 2016. The hydrographic cast of CTDO2 was restarted at the station (Stn.60 (8°N, 137°E; RF5861)) on August 1. Leg 2 consisted of 33 stations from Stn.60 (8°N, 137°E; RF5861) to Stn.92 (2°20’S, 141°30’E; RF5893). Stn.92 was finished on August 11. She arrived at Tokyo (Japan) on August 24, 2016 (Leg 2). Location data of stations is shown in Table 2. One Argo float and one drifting ocean data buoy were deployed along the cruise track. The information of deployed the float and the buoy are listed in Table 3. Figure 1: Cruise track of RF16-06. Figure 2: The bottle depth diagram for WHP-P9 revisit. Table 1: The scheme of sampling layer in meters. North of 20°N (Stn.1–Stn.33) South of 20°N (Stn.34–Stn.92) ———————————————————————————— ————————————————————————————— Bottle count scheme1 scheme2 scheme3 scheme4 scheme5 scheme6 ———————————— ——————— ——————— ——————— ——————— ——————— ——————— 1 10 10 10 10 10 10 2 25 25 25 25 25 25 3 50 50 50 50 50 50 4 75 75 75 75 75 75 5 100 100 100 100 100 100 6 125 125 125 125 125 125 7 150 150 150 150 150 150 8 200 200 200 200 200 200 9 250 250 250 250 250 250 10 300 330 280 300 330 280 11 400 430 370 350 380 320 12 500 530 470 400 430 370 13 600 630 570 450 480 420 14 700 730 670 500 530 470 15 800 830 770 600 630 570 16 900 930 870 700 730 670 17 1000 1070 970 800 830 770 18 1200 1270 1130 900 930 870 19 1400 1470 1330 1000 1070 970 20 1600 1670 1530 1200 1270 1130 21 1800 1870 1730 1400 1470 1330 22 2000 2070 1930 1600 1670 1530 23 2200 2270 2130 1800 1870 1730 24 2400 2470 2330 2000 2070 1930 25 2600 2670 2530 2200 2270 2130 26 2800 2870 2730 2400 2470 2330 27 3000 3080 2930 2600 2670 2530 28 3250 3330 3170 2800 2870 2730 29 3500 3580 3420 3000 3080 2930 30 3750 3830 3670 3250 3330 3170 31 4000 4080 3920 3500 3580 3420 32 4250 4330 4170 3750 3830 3670 33 4500 4580 4420 4000 4080 3920 34 4750 4830 4670 4250 4330 4170 35 5000 5080 4920 4500 4580 4420 36 5250 5330 5170 4750 4830 4670 37 5500 5580 5420 5000 5080 4920 38 5750 5830 5670 5250 5330 5170 39 6000 6000 6000 5500 5580 5420 40 5750 5830 5670 41 6000 6000 6000 Table 2: Station data of RF16-06 cruise. The ‘RF’ column indicates the JMA station identification number. Leg Station Position Leg Station Position ——— ——————— —————————————————————— ——— ————————— ——————————————————————— Stn RF Latitude Longitude Stn RF Latitude Longitude ——— ———— —————————— ——————————— ——— ———— —————————— ——————————— 1 1 5802 34-10.49 N 137-00.02 E 1 33 5834 20-29.25 N 136-59.38 E 1 2 5803 34-00.26 N 137-00.04 E 1 34 5835 19-58.33 N 136-59.74 E 1 3 5804 33-35.10 N 137-00.32 E 1 35 5836 19-29.61 N 136-59.86 E 1 4 5805 33-20.36 N 137-00.73 E 1 36 5837 18-59.87 N 136-59.31 E 1 5 5806 33-00.42 N 137-03.29 E 1 37 5838 18-29.90 N 136-59.51 E 1 6 5807 32-39.77 N 137-03.32 E 1 38 5839 17-59.19 N 136-58.61 E 1 7 5808 32-20.44 N 137-01.63 E 1 39 5840 17-30.27 N 136-56.65 E 1 8 5809 31-59.45 N 137-00.82 E 1 40 5841 16-59.80 N 136-57.92 E 1 9 5810 31-38.69 N 136-59.83 E 1 41 5842 16-30.21 N 136-57.90 E 1 10 5811 31-19.13 N 137-01.13 E 1 42 5843 16-00.19 N 136-58.60 E 1 11 5812 30-58.80 N 136-59.55 E 1 43 5844 15-30.09 N 136-59.00 E 1 12 5813 30-39.47 N 136-59.83 E 1 44 5845 14-59.50 N 136-59.35 E 1 13 5814 30-20.04 N 136-59.20 E 1 45 5846 14-30.08 N 136-58.88 E 1 14 5815 30-00.70 N 136-59.29 E 1 46 5847 13-59.79 N 136-58.40 E 1 15 5816 29-31.59 N 137-09.03 E 1 47 5848 13-30.33 N 136-59.25 E 1 16 5817 29-01.52 N 136-57.97 E 1 48 5849 12-59.99 N 136-59.33 E 1 17 5818 28-30.27 N 136-59.73 E 1 49 5850 12-30.39 N 136-59.39 E 1 18 5819 28-02.64 N 136-59.38 E 1 50 5851 11-59.12 N 136-59.61 E 1 19 5820 27-31.32 N 136-59.83 E 1 51 5852 11-29.12 N 136-58.77 E 1 20 5821 27-02.23 N 136-58.87 E 1 52 5853 10-58.76 N 136-59.38 E 1 21 5822 26-31.86 N 136-59.52 E 1 53 5854 10-29.23 N 136-59.52 E 1 22 5823 26-01.18 N 137-00.69 E 1 54 5855 10-00.11 N 136-58.67 E 1 23 5824 25-30.16 N 137-00.72 E 1 55 5856 9-30.04 N 136-59.13 E 1 24 5825 25-00.33 N 136-58.55 E 1 56 5857 8-59.69 N 136-59.36 E 1 25 5826 24-31.44 N 136-59.38 E 1 57 5858 8-40.01 N 136-59.64 E 1 26 5827 24-00.38 N 137-00.96 E 1 58 5859 8-19.94 N 136-59.87 E 1 27 5828 23-30.16 N 137-00.34 E 1 59 5860 7-59.75 N 137-00.12 E 1 28 5829 22-59.78 N 137-20.39 E 2 60 5861 7-59.61 N 136-59.17 E 1 29 5830 22-29.37 N 137-19.64 E 2 61 5862 7-39.02 N 136-50.51 E 1 30 5831 21-59.88 N 137-19.31 E 2 62 5863 7-29.24 N 136-50.68 E 1 31 5832 21-29.68 N 136-59.35 E 2 63 5864 7-19.40 N 136-49.06 E 1 32 5833 21-00.15 N 136-59.86 E 2 64 5865 6-59.16 N 136-59.90 E 2 65 5866 6-30.87 N 137-00.96 E 2 79 5880 2-17.67 N 140-29.90 E 2 66 5867 5-59.23 N 137-01.41 E 2 80 5881 2-11.07 N 141-00.26 E 2 67 5868 5-30.57 N 137-00.53 E 2 81 5882 2-05.23 N 141-30.55 E 2 68 5869 5-00.59 N 137-01.33 E 2 82 5883 1-59.08 N 142-00.39 E 2 69 5870 4-31.23 N 137-00.61 E 2 83 5884 1-28.93 N 142-01.54 E 2 70 5871 4-00.90 N 137-00.43 E 2 84 5885 0-59.28 N 142-00.82 E 2 71 5872 3-31.28 N 136-59.95 E 2 85 5886 0-29.32 N 142-00.70 E 2 72 5873 3-01.39 N 137-00.83 E 2 86 5887 0-00.07 S 142-00.61 E 2 73 5874 2-54.33 N 137-30.63 E 2 87 5888 0-29.90 S 142-00.87 E 2 74 5875 2-49.26 N 138-00.52 E 2 88 5889 1-00.75 S 142-00.28 E 2 75 5876 2-41.51 N 138-32.00 E 2 89 5890 1-30.46 S 142-00.26 E 2 76 5877 2-36.54 N 139-00.45 E 2 90 5891 2-00.37 S 142-00.02 E 2 77 5878 2-27.30 N 139-38.67 E 2 91 5893 2-10.54 S 141-29.74 E 2 78 5879 2-22.85 N 140-00.81 E 2 92 5892 2-17.23 S 141-11.36 E Table 3: Information of deployed float and buoy. Float Date and Time Position of deployment PI WMO number of Deployment (UTC) Latitude Longitude —————————— ——————————————————— —————————— ——————————— ——— 2902982 2016 Aug. 15 21-57.62 N 139-02.82 E JMA ARVOR 23:20 ———————————————————————————————————————————————————————————————————————— Buoy Date and Time Position of deployment PI WMO number of Deployment (UTC) Latitude Longitude —————————— ——————————————————— —————————— ——————————— ——— 21704 2016 July 07 30-00.98 N 136-59.99 E JMA YTSS-2100 19:11 ———————————————————————————————————————————————————————————————————————— ARVOR: nke Instrumentation, France YTSS-2100: JVC KENWOOD Co., Japan 3. List of Principal Investigators for all Measurements The principal investigator (PI) and the person in charge responsible for major parameters measured on the cruise are listed in Table 4. Table 4: List of principal investigator and the person in charge on the ship for RF16-06. Item Principal Inves- Person in charge tigator(PI) on the ship —————————————————— ———————————————— ————————————————— Hydrography ——————————— CTDO2 / LADCP Toshiya NAKANO Yoshikazu HIGASHI Salinity Toshiya NAKANO Keizo SHUTTA Dissolve oxygen Toshiya NAKANO Kazuhiro SAITO Nutrients Toshiya NAKANO Takahiro KITAGAWA Phytopigment Toshiya NAKANO Hiroyuki TAKANO DIC Toshiya NAKANO Shinji MASUDA Total Alkalinity Toshiya NAKANO Shinji MASUDA pH Toshiya NAKANO Shinji MASUDA CFCs Toshiya NAKANO Kazukaka ENYO Underway ———————— Meteorology Toshiya NAKANO Naoki NAGAI Thermo-Salinograph Toshiya NAKANO Shinji MASUDA pCO2 Toshiya NAKANO Shinji MASUDA Chlorophyll-a Toshiya NAKANO Hiroyuki TAKANO ADCP Toshiya NAKANO Yoshikazu HIGASHI Bathymetry Toshiya NAKANO Yoshikazu HIGASHI Floats —————— Argo float Kazuhiro NEMOTO Keizo SHUTTA Toshiya NAKANO (nakano_t@met.kishou.go.jp) Marine Division, Global Environment and Marine Department, JMA 1-3-4, Otemachi, Chiyoda-ku, Tokyo 100-8122, JAPAN Phone: +81-3-3212-8341 Ext. 5131 Kazuhiro NEMOTO (k-nemoto@met.kishou.go.jp) Marine Division, Global Environment and Marine Department, JMA 1-3-4, Otemachi, Chiyoda-ku, Tokyo 100-8122, JAPAN Phone: +81-3-3212-8341 Ext. 5128 Reference Swift, J. H. (2010): Reference-quality water sample data: Notes on acquisition, record keeping, and evaluation. IOCCP Report No.14, ICPO Pub. 134, 2010 ver.1 CCHDO Data Processing Notes Data History • File Online Carolina Berys p09su.txt (download) #63b78 Date: 2018-06-08 Current Status: unprocessed • File Online Carolina Berys p09_hy1.csv (download) #f416f Date: 2018-06-08 Current Status: unprocessed • File Online Carolina Berys A_cruise_narrative_2016_P09_20180502.doc (download) #a1704 Date: 2018-06-08 Current Status: unprocessed • File Online Carolina Berys ct1.zip (download) #f88c7 Date: 2018-06-08 Current Status: unprocessed • File Submission Toshiya NAKANO p09su.txt (download) #63b78 Date: 2018-05-12 Current Status: unprocessed Notes Ship Name: Ryofu Maru (Japan Meteorological Agency) Section: P09 (RF16-06) Cruise date: RF16-06 : 3 July 2016–24 August 2016 • File Submission Toshiya NAKANO p09_hy1.csv (download) #f416f Date: 2018-05-12 Current Status: unprocessed Notes Ship Name: Ryofu Maru (Japan Meteorological Agency) Section: P09 (RF16-06) Cruise date: RF16-06 : 3 July 2016–24 August 2016 • File Submission Toshiya NAKANO ct1.zip (download) #f88c7 Date: 2018-05-12 Current Status: unprocessed Notes Ship Name: Ryofu Maru (Japan Meteorological Agency) Section: P09 (RF16-06) Cruise date: RF16-06 : 3 July 2016–24 August 2016 • File Submission Toshiya NAKANO A_cruise_narrative_2016_P09_20180502.doc (download) #a1704 Date: 2018-05-12 Current Status: unprocessed Notes Ship Name: Ryofu Maru (Japan Meteorological Agency) Section: P09 (RF16-06) Cruise date: RF16-06 : 3 July 2016–24 August 2016 11