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standardization of environmental data and information - International ...

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detailed guidelines recommended by the Sanya Workshop <strong>and</strong> <strong>of</strong>fer<br />

suggestions (in italics) where additional specifications appear warranted. In<br />

section 3 following, I discuss major remaining issues for baseline-<strong>data</strong><br />

collection, including frequency <strong>and</strong> duration <strong>of</strong> baseline monitoring,<br />

taxonomic <strong>st<strong>and</strong>ardization</strong> <strong>and</strong> the general requirements <strong>of</strong> an<br />

<strong>environmental</strong> <strong>data</strong>base.<br />

2.1. Physical oceanography<br />

The LTC recommendations for physical oceanographic baseline-<strong>data</strong><br />

collection are as follows (paragraph 8(a)):<br />

“(i)<br />

(ii)<br />

(iii)<br />

(iv)<br />

Collect <strong>information</strong> on the oceanographic condition<br />

along the entire water column, including the current,<br />

temperature <strong>and</strong> turbidity regimes above the<br />

seafloor;<br />

Adapt the current measurement programme to the<br />

topography <strong>and</strong> regional hydrodynamic activity in the<br />

upper water column <strong>and</strong> on the sea surface;<br />

Measure the currents <strong>and</strong> particulate matters at the<br />

depth <strong>of</strong> the forecasted discharge during the testing<br />

<strong>of</strong> collecting systems <strong>and</strong> equipment;<br />

Measure the particulate distribution to record<br />

particulate concentration along the water column”.<br />

To meet these requirements, the following guidelines were<br />

recommended by the Sanya Workshop:<br />

To characterize the physical regime, a minimum <strong>of</strong> four currentmeter<br />

moorings are required, with at least one (the “long mooring”)<br />

reaching pycnocline depths (i.e., 50- 100 m). Scales <strong>of</strong> separation <strong>of</strong><br />

current-meter moorings should be <strong>of</strong> the order <strong>of</strong> 50-100 km. The long<br />

mooring should contain at least eight current meters (including one within<br />

the pycnocline <strong>and</strong> one at the forecasted discharge depth) <strong>and</strong> each <strong>of</strong> the<br />

remaining moorings should have at least six meters. Each mooring should<br />

have a current meter at the following altitudes above the seafloor: 1-3, 5,<br />

15, 50 <strong>and</strong> 200 m, <strong>and</strong> 1.2-2 times the height <strong>of</strong> the highest topographic<br />

element in the claim area. In addition, each mooring should include a<br />

transmissometer. Three <strong>of</strong> the transmissometers should be deployed at<br />

INTERNATIONAL SEABED AUTHORITY 56

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