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TitleWater Pollution: Modelling, Measuring and Prediction
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LanguageEnglish
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Page 1

Water Pollution: Modelling, Measuring and
Prediction

Page 2

FIRST INTERNATIONAL CONFERENCE
ON

WATER POLLUTION: MODELLING, MEASURING AND
PREDICTION 91

SCIENTIFIC COMMITTEE

B.L. Bayne
C.A. Brebbia
M.A. Celia
R.A. Falconer
P. Fritz
G. Gambolati
E.I. Hamilton
D.R.F. Harleman
A. James
J.E. Jorgensen

O. Kinne
D.Ouazar
G.F. Pinder
A. Plata Bedmar
J.S.F. Roldao
M.Th. van Genuchten
S.S.Y. Wang
L.C. Wrobel
A.B. Zuber

Page 359

370 Water Pollution

Alenia, an Italian aeronautical firm, conducted an
aircraft remote sensing survey on the Gulf of Naples
aiming at establishing a quick monitoring technique
to be applied to the coastal runoffs detection and to
investigation of water quality, all along the Italian
coast line.

The Gulf of Naples, once amongst the most
pictoresque in the world, is nowadays a receptor of
many unknown discharges, mostly of anthropological
origin, mainly due to unsupervised urbanization. This
situation, which might modify the marine environment
with the introduction of a larger amount of
nutrients, and promote eutrophication of water
(Scotto di Carlo et al. [9]), has not been
systematically studied till now.

Remote sensing techniques allow useful
investigations of the sea surface characteristics
over wide zones. Before our aircraft survey, a study
of water quality on the Gulf of Naples was performed
with data collected by the Thematic Mapper scanner
on board of the satellite LANDSAT 5 (Andreoli et al.
[1] ) .

In order to recognize even small discharges we
used a viator AP68TP, a small aircraft fitted out by
Alenia in agreement with ENEA for environment
monitoring.

In this paper we describe processes of data
acquisition, correction and elaboration, and present
results of the survey.

EXPERIMENTAL DATA

The aerial campaign was carried out in June 1990, in
the period of dormancy of microalghae blooms, so as
to avoid undesired spectral signatures in detected
data. At the same time a sea truth campaign was
organized and atmospheric parameters were measured to
support the remote sensed data.

Aircraft measurement
Data acquisition has been performed by multispectral
scanner DAEDALUS AADS1268 with CZCS array. This
scanner collects data in 12 channells centered on
visible, near infrared and thermal infrared
wavelengths (see Tab. 1), its digitized field of view
is 85.92° and the instantaneous one 2.5 mrad .

The aircraft flown at 1900 meters, the lateral
ground coverage is equal to 1.86H, where H is the
aircraft altitude in meters, then the swath has been

Page 360

Water Pollution 371

of about 2000 meters and the pixel size of about 5
meters.

Table 1. operating wavelengths of the
multispectral scanner.

BAND WAVELENGTH

1 433 - 453 nm
2 480 - 500 nm
3 508 - 532 nm
4 543 -577 nm
5 580 - 630 nm
6 638 - 702 nm
7 715 - 815 nm
8 830 - 935 nm
9 1550 - 1750 nm

10 2080 - 2350 nm
11 8500 - 13000 nm
12 same as band 11

Aircraft carried out 4 flight lines over the
coast:

1
2
3
4

from
from
from
from

Lucrino Lake to Capo Miseno
Naples Harbour to Nisida
Posillipo to Lucrino Lake
Sca.ssata Tower to Naples Harbour.

The mission was repeated for three days, to
allow a more detailed analysis.

Surface measurements
In situ campaign is necessary to check the algorithms
to evaluate chlorophyll and sediment concentration
and to correct data from atmospheric effects.

A sea truth cruise was carried out at the time
of the overflights. Measurements of concentration of
materials suspended and dissolved in sea water were
performed by researchers of the Zoological station
"A. Dohrn" of Naples, while measuraments of spectral
signatures, incident irradiance and radiometric
temperatures were performed by researchers of the
National Research Council of Venezia.

Measuraments of atmospheric trasmittance and
meteorological data were performed by dott. G.
Zibordi of the National Research Council of Modena.

In table 2 the retrieved optical thicknesses and
the meteorological data are given.

Page 718

AUTHORS' INDEX
Falconer, R.A ............ 3,519
Feher J ..................... 27

Adams E.E ................ 251 Gaspar C .................. 299
Alberotanza 1. ... 355, 481, 497
Aldighieri G ................ 497 Hamilton E.I. .............. 645
Arsenault G ................ 719 Harleman D.R.F ....... 125, 535
Averbeck C ................ 693 Hartnett M ................ 279

H iirlimann W ............... 99
Baddour R.E ............... 321 Huttula T .................. 111
Barbour S.L ................ 181
Belenky B.G ............... 683 Ito R ...................... 735
Berlamont J.. .............. 141
Bhattacharya S.K. ......... 595 James A ................... 155
Bicudo J .R ................. 579 J6zsa J .................... 299
Birkbeck T.H .............. 455
Bisnar M.C ................ 545 Korsch M .................. 693
Biver P ..................... 43 Kurochkin V.E ............. 683
Bongao 1. V ................ 545
Brinsley M.D ............... 627 Lafrance P ................. 413
Brooks J.M ............ 665, 707 Latinopoulos P .............. 59
Briiggemann R. ............ 195 Laurens J.-M ................ 91
Biige T.R. ................. 167 Lee Y.-D ................... 383
Burn D.H .................. 505 Lehtinen K ................. 111
Burrows R ................. 265 Levent Kavvas M ............ 73

Li G ....................... 563
Carbognin 1. .............. 481 Li L ....................... 141
Cargnelutti M .............. 141 Liljestrand H.M ....... 383, 399
Cawley A.M ............... 279 Lunel T .................... 225
Chadwick D.B ............. 463
Cleary J.J.. ................ 627 Mackie C .................. 455
Copeland G.J.M ........... 241 Madureira 1.F ............. 579
Cova P ................ 481,497 Malve 0 ................... 111
Cvetkovic A.D ............. 719 Marineau 1. ............... 413

McDonald S.J .............. 707
Datta B ..................... 73 McDonald T.J ............. 707
Davis E .................... 181 Mishra S .................... 99
De Troch F ................ 141 Miinzer B .................. 195
Dermissi N ................. 611 Mylopoulos Y ............... 59
Dermissis V ................ 611
Dias N.1.C ................. 167 Nemeth T ................... 27
Dimou K.N ................ 251 Nottage A.S ................ 455

Nysten T .................. 427
Elliott D.J ................. 155

Page 719

Orlob G.T .................. 73 Wrobel L.C ................ 167
Owens Jr. E.M ............. 125

Yuan Q .................... 595
Panina L.K. ............... 683
Pavanatti M ............... 355 Zandonella A ............... 355
Plata Bedmar A ............ 329 Zibordi G .................. 355
Popovic R. ................. 719 Zucchetta G ........... 481,497

Zuidema P .................. 99
Ramasco C ............ 481, 497
Ratinckx P ................. 141
Reddy N ................... 595
Remenda V.H .............. 181
Riccetti M ................. 369
Roldao J.S.F ............... 167
Romano M ................. 369

Salazar M. H ............... 463
Schulz H.E ................. 441
Schulz S.A.G .............. .441
Sericano J.L ................ 665
Shiba S .................... 735
Shimizu Y ................. 399
Shiono K. .................. 519
Simbierowicz P ............. 299
Soares J.H.P ............... 167
Stebbing A.R.D ............ 627
Sueishi T .................. 735

Talice S .................... 369
Taroni G ................... 481
Teasdale I. .................. 91
Teixeira E.C ............... 519
Thain J.E .................. 627
Theodosiou N ............... 59
Trapp St ................... 195
Troch P .................... 141
Tushinsky S ................ 211

van Genuchten M. Th ........ 27
Varis O .................... 313
Vauk G .................... 693
Vianello A ................. 497
Villeneuve J.P ............. .413

Wade T.L ............. 665, 707
Wang W ................... 265

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