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A report on the Red Funnel FerryBox 2004 - an overview of the data obtained, improvements and calibration procedures

By M.C. Hartman, S.E. Hartman, D.J. Hydes and J. Campbell

Abstract

This report aims to provide a complete record of the work done as part of the ‘FerryBox’ activities on the Red Funnel Ltd ‘Red Falcon’ ferry in Southampton Water and the Solent in 2004. The procedures, hardware and software used are described and listed in detail. The results are summarised. Details are provided of the content and location of all of the data files produced, both observational data and data collected to calibrate the instruments. The collection of high quality, long term data in as many environments as possible is required to investigate the interplay of different factors affecting phytoplankton bloom development. With this in mind the Southampton Water and Solent estuarine system has been intensively monitored over the last 6 years using the FerryBox system. The ferry travels the length of the estuary up to 16 times a day. The ‘FerryBox’ suite of sensors measures<br/>temperature, salinity, fluorescence and turbidity. These data are collected with at a frequency of 1Hz and are merged with position data, collected using a GPS system.<br/><br/>In 2004 the FerryBox methods were improved to reduce the affects of bio fouling on the sensors. The sensors were systematically cleaned and the sensors calibrated during weekly ferry crossings. Calibrations of the turbidity and fluorescence sensors were monitored using materials suspended in solid Perspex blocks. The sensors were found to be stable and a high quality dataset was produced. Variations were seen in the ratio of fluorescence to chlorophyll throughout the estuary and with the time of year. Using the ‘FerryBox’ dataset the occurrence of phytoplankton blooms has been related to environmental factors such as light and to the tides. Such continuous monitoring allows us to pinpoint the timings of phytoplankton bloom initiation and duration. In 2004 a series of regular peaks in<br/>fluorescence occurred throughout the summer months. The detailed data from the FerryBox allows the occurrence of these blooms to be correlated with changes in the tidal energy of the system, light and fresh water run off

Topics: GC, QD
Publisher: Southampton Oceanography Centre
Year: 2005
OAI identifier: oai:eprints.soton.ac.uk:18700
Provided by: e-Prints Soton
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Citations

  1. (2004). (a) Nitrate variation with salinity, calibration crossings day 128 to day 203 15 Red Falcon discrete nitrate and salinity samples, day 210 to day 287 in
  2. (b) Nitrate variation with salinity, calibration crossings day 210 to day 287 Discrete sample results for nutrient and chlorophyll in high salinity waters 0
  3. 02/06/2004 djh 12:00 Xing fit flow meter and adjust flow. Problem was alignment of minitracka. Flow left at 4LPM. Higher rate flow meter ordered.
  4. 02/09/2004 mch Cal Xing mch. First leg attempt to assess minitracka output. 2nd leg calibration samples 16/09/2004 mch cal Xing djh & mch. Clean sensors. Fluor check. Minitracka check using new blocks, no data download. Little fouling of optics.
  5. 11/08/2004 mch mch Fluorimeter check, cleaned sensors. Heavyish build up of muddy sediment over sensor head. Downloaded engine room data.
  6. 13/10/2004 mch cal Xing djh & mch Sensors cleaned. Formazine standard used with turbidity sensor in flow cell, acrylic blocks and photo stops. Cal check of fluorimeter, Wind from South some white horses.
  7. 14/07/2004 mch Cal Xing mch & saw With djh onboard at outset. Wind Southerly steady breeze, second crossing with replacement minipack. 0900 sailing (0800 GMT). Little apparent fouling.
  8. 18/08/2004 mch mch, djh cleaned sensors, downloaded all data. Chopped minitracka cable spliced as per PoB, refitted 19/8/04.
  9. 23/09/2004 mch cal Xing mch & mqurban. Formazine standard used with turbidity sensor in flow cell, acrylic blocks and photo stops. Cal check of fluorimeter, samples taken on Cowes - Soton leg, strong wind from W, high turbidity generally.
  10. 25/08/2004 mch Cal Xing mch, djh. First crossing with new minitracka cable. Heavy deposits of grey/green substance. Wind from North.
  11. 27/10/2004 mch djh & mch data download. Removed sensors to SOC.
  12. 28/07/2004 mch Cal Xing mch, saw. Fourth crossing with replacement minipack. Slimy transparent coating over lenses. One lugol sample taken.
  13. 30/09/2004 mch suh + djh. Clean Sensors. Fluor + minitracka check.
  14. A Ferry Box system has been installed onboard the Red Falcon ferry (Red Funnel Group) since 1999. Experience gained in previous years has highlighted that the regular cleaning of the system was essential.
  15. (2004). A flag that is set to 0 for interpolated values, or 1 for genuine values Here is an example of a data
  16. (2001). Annex 5: Draft Common Assessment Criteria and their Application within the Comprehensive Procedure of the Common Procedure. Meeting Of The Eutrophication Task Group (Etg),
  17. (2004). append variables to filename RF04 end clear *1 r i % tidy workspace 11.1.16 loadwk % % Reads through weekly files % % mch Oct
  18. (1995). At present Southampton Water is not considered to be eutrophic (Nixon,
  19. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa01.xls 7May04
  20. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa02.xls 10June04
  21. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa03.xls 16June04
  22. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa04.xls 23June04
  23. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa05.xls 7July04
  24. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa06.xls 14July04
  25. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa07.xls 21July04
  26. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa08.xls 28July04
  27. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa09.xls 4August04
  28. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa10.xls 11August04
  29. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa11.xls 18August04
  30. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa12.xls 25August04
  31. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa13.xls 2September04
  32. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa14.xls 16September04
  33. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa15.xls 23September04
  34. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa16.xls 30September04
  35. Attridge Checked: Bill Neal Originated: Elliott Issue ECO Date A Original Issue 6/8/04 ctgqa17.xls 13October04
  36. (2004). calibration log sheets 2004 Page 101 of 102ctgqa17.xls 13October04
  37. (2004). calibration log sheets 2004 Page 11 of 102ctgqa02.xls 10June04
  38. (2004). calibration log sheets 2004 Page 17 of 102ctgqa03.xls 16June04
  39. (2004). calibration log sheets 2004 Page 23 of 102ctgqa04.xls 23June04
  40. (2004). calibration log sheets 2004 Page 29 of 102ctgqa05.xls 7July04
  41. (2004). calibration log sheets 2004 Page 35 of 102ctgqa06.xls 14July04
  42. (2004). calibration log sheets 2004 Page 41 of 102ctgqa07.xls 21July04
  43. (2004). calibration log sheets 2004 Page 47 of 102ctgqa08.xls 28July04
  44. (2004). calibration log sheets 2004 Page 5 of 102ctgqa01.xls 7May04
  45. (2004). calibration log sheets 2004 Page 53 of 102ctgqa09.xls 4August04
  46. (2004). calibration log sheets 2004 Page 59 of 102ctgqa10.xls 11August04
  47. (2004). calibration log sheets 2004 Page 65 of 102ctgqa11.xls 18August04
  48. (2004). calibration log sheets 2004 Page 71 of 102ctgqa12.xls 25August04
  49. (2004). calibration log sheets 2004 Page 77 of 102ctgqa13.xls 2September04
  50. (2004). calibration log sheets 2004 Page 83 of 102ctgqa14.xls 16September04
  51. (2005). calibration log sheets 2004 Page 89 of 102ctgqa15.xls 23September04
  52. (2004). calibration log sheets 2004 Page 95 of 102ctgqa16.xls 30September04
  53. (1997). Data buoy measurements of phytoplankton dynamics in Southampton Water, UK, a temperate latitude estuary with high nutrient inputs.
  54. (2004). discrete nitrate and salinity samples, day 128 to day 203 in
  55. (2004). Factors controlling the timing of major spring bloom events in an UK south coast estuary Estuarine,
  56. (2002). Ferry-Boxes’ and data stations for improved monitoring and resolution of eutrophication-related processes: application in Southampton Water UK, a temperate latitude hypernutrified estuary.
  57. (2004). FerryBox fluorescence data (fluorescence residual) shown alongside tidal data (Admiralty,2004)
  58. (2004). Figure 3.1 Salinity data (extracted at the latitude of Netley) alongside tidal range data (Admiralty,
  59. (2004). Figure 3.7 A map of fluorescence residual with location (latitude) and time with a colour bar that depicts a doubling of values (ranging from 0 to over 64 fluorescence units, each approximating to 5x the chlorophyll concentration
  60. (2004). Filename Format Location Description Section Size(MB) Mdddhhmm.prc ASCII
  61. (2004). input file - RF04min.mat % output file - RF04leg.mat % mch
  62. No high variations in any recorded values. Data downloaded from Bridge and engine room loggers 21/07/2004 mch Cal Xing mch, saw. Third crossing with replacement minipack. Little apparent overall variation. Temperatures from alcohol, IR and logger compared.
  63. On the following (102) pages we reproduce the complete set of forms completed by Mark Hartman following each calibration trip on the Red Falcon in 2004. In all 17 calibration trips were done.
  64. (2002). saw frequent cloud cover and increased river inputs in May which delayed the onset of the bloom and reduced its magnitude (Iriarte & Purdie,
  65. (2004). The corresponding page of the pair entitled Red Falcon Mean weekly FerryBox Data
  66. The Minitracka was removed from its flow cell allowing the tap water to remain in the flow cell`s lower pipe up to the level of the bottom of the flow cell. y =
  67. (1967). The plankton of estuaries. In: Lauff,
  68. (2004). the Red Falcon underwent major structural alterations in order to increase its carrying capacity.

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