Participants:

Gian Pietro Gasparini: scientist (contact person)Stefania Sparnocchia: scientistPierluigi Traverso: scientst Anna Vetrano: scientistBacciola Domenico: technicianMireno Borghini: technicianGiorgio Bruzzone: technician

Carlo Galli: technician

Participant 12: CNR- ISMARParticipant 12: CNR- ISMARSection of La Spezia

(in collaboration with sections of Genova and Trieste)

Italy

ISMAR (Istituto di Scienze del Mare) is a multidisciplinary institute of the Consiglio Nazionale delle Ricerche (CNR), covering many marine topics: physical oceanography, marine geology, chemistry, biology and fishery.

ISMAR section of La Spezia has a long experience on physical oceanography, mainly addressed to experimental studies. At the present, exchange monitoring of water masses through the Sicily Strait and the Corsica Channel is maintained together with oceanographic cruises covering large part of the Mediterranean basin.

Latit

ude

(°N

)

Longitude (°E )

C TD C TD & bottles

2 3 4 5 6 7 8 9 10 11 12 13

37

38

39

40

41

42

43

44

913

900

L1

L14

B1

B8

D1

D12

S1 S21

D13

D19

410

432

212

291

A10

A9

A8

A7

S18S14

Example of oceanographic cruise

*

*

* current

(April – May 2005)

Oceanographic facilities and expertise

-Availability of R/V URANIA

-Oceanographic instruments (hydrographic probes, current meters,…)

-Technical staff with a large experience on the sea:

- mooring assembly, deployment, recovery- Hydrographic measurements- Water sampling acquisition and chemical analysis

In the frame of KM3net CNR-ISMAR will contribute to:

- Oceanographic characterization of deep sea (WP5)

- Development of a model for long-term measurements addressed to climate change studies (WP9)

Oceanographic characterization of deep sea (WP5)

CNR-ISMAR will provide:

- physical oceanographic conditions:

- Current variability- Hydrographic characteristics

- Tests on corrosion

PlanedInvestigations

-Hydrographic conditionsPeriodic surveys along a defined grid from the surface to the bottom.

-Current measurements Long-term monitoring for defining space and time variability of the current field in the region.

- Corrosion tests One or two sample cages will be deployed in the currentmeter mooring, containing 96 samples.

Details on the deployment will be defined after a deep analysis of existing information.

A preliminary hydrographic/current survey is going on during this month.

The intent is to acquire preliminary information on space variability.

01Jul 21Jul 10Aug 30Aug 19Sep 09Oct 29Oct 18Nov 08Dec 28Dec 17Jan

10 cm/s

2001 -2002

First Period

Correlation coefficient: 0.99

Some Preliminary Results

3020m

2700m

July 2001 – January 2002

Mean speed: 3.7 cm/sMax speed: 10.3 cm/s

Mean speed: 3.8 cm/sMax speed: 12.6 cm/s

10-1

100

0

0.2

0.4

0.6

0.8

1

coh

eren

ce

First Period (u component) (period: 2001/ 7/ 1 - 2002/ 2/10)

10-1

100

-180

-90

0

90

180 p

hase

cpd

10-1

100

10-2

10-1

100

101

cpd

cm

2 /s

2 First Period (u component) (period: 2001/ 7/ 1 - 2002/ 2/10)

Current Comparisonat two different depths

Spectral analysis

-350 -300 -250 -200 -150 -100 -50 00

50

100

150

200

250

300

350

400

km

km

-300 -250 -200 -150 -100 -50 0 50-200

-150

-100

-50

0

50

km

km

Jul 2001 – Jan 2002

Nov 2003 – Aug 2004

-80 -60 -40 -20 0 200

10

20

30

40

50

60

70

80

90

km

km

Mar 2002 – Aug 2002Current comparison for three different periods

Mean speed: 3.8 cm/sMax speed: 12.6 cm/s

Mean speed: 2.4 cm/sMax speed: 11.1 cm/s

Mean speed: 3.4 cm/sMax speed: 10.8 cm/s

Sample cage for corrosion test

96 samples; sample dimension: 100mm x 100mm