Imaging spectrometry of productive inland waters. Application to the lakes of Mantua

In this study remote sensing techniques have been used for small scale analysis of water temperature, chlorophyll a (chl-a) and total suspended solids (TSS) in three shallow eutrophic lakes (Mantua Lakes, Italy), characterised by variable depths, complex hydrodinamics and elevated primary production of both microalgae and floating leaved macrophytes. Airborne hyperspectral data, acquired in summer 2007, were combined with semi-empirical modelling and provided acceptable estimation of chl-a (error 18%) and TSS concentrations (error 24%). The image-derived maps, complemented with the thermal image (error 3%), confirm the hypereutrophic-dystrophic conditions of Mantua Lakes and show the patchy spatial distribution of analysed parameters.

[1]  Stacy L. Ozesmi,et al.  Satellite remote sensing of wetlands , 2002, Wetlands Ecology and Management.

[2]  A. E. Greenberg,et al.  Standard methods for the examination of water and wastewater : supplement to the sixteenth edition , 1988 .

[3]  D. Pierson,et al.  The effects of variability in the inherent optical properties on estimations of chlorophyll a by remote sensing in Swedish freshwaters. , 2001, The Science of the total environment.

[4]  L. Alberotanza,et al.  Hyperspectral aerial images. A valuable tool for submerged vegetation recognition in the Orbetello lagoons, Italy , 1999 .

[5]  J. Mustard,et al.  A semianalytical approach to the calibration of AVIRIS data to reflectance over water application in a temperate estuary , 2001 .

[6]  J. G. Lyon,et al.  Use of aerial photographs to measure the historical areal extent of lake Erie coastal wetlands , 1992 .

[7]  Anatoly A. Gitelson,et al.  Remote chlorophyll-a retrieval in turbid, productive estuaries : Chesapeake Bay case study , 2007 .

[8]  D. G. George.  The airborne remote sensing of phytoplankton chlorophyll in the lakes and tarns of the English Lake District , 1997 .

[9]  W. Mitsch,et al.  Wetlands. 2nd ed. , 1993 .

[10]  Claudia Giardino,et al.  Recent changes in macrophyte colonisation patterns: an imaging spectrometry-based evaluation of southern Lake Garda (northern Italy) , 2007 .

[11]  J. R. Jensen,et al.  Measurement of seasonal and yearly cattail and waterlily changes using multidate SPOT panchromatic data , 1993 .

[12]  L. Prieur,et al.  Analysis of variations in ocean color1 , 1977 .

[13]  Donald C. Pierson,et al.  Manual for Monitoring European Lakes using Remote Sensing Techniques , 1999 .

[14]  E. Barbier,et al.  Paradise Lost: The ecological economics of biodiversity , 2009 .

[15]  Serge Andréfouët,et al.  Sea surface correction of high spatial resolution Ikonos images to improve bottom mapping in near-shore environments , 2003, IEEE Trans. Geosci. Remote. Sens..

[16]  Giorgio Dall'Olmo,et al.  Effect of bio-optical parameter variability on the remote estimation of chlorophyll-a concentration in turbid productive waters: experimental results. , 2005, Applied optics.