ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017, Vol. 14, No. 2, pp. 125-134

Investigation of hyperspectral survey capabilities for monitoring water bodies state and water quality

A.N. Vinogradov 1 , V.V. Egorov 2 , A.P. Kalinin 3 , A.I. Rodionov 1 , I.D. Rodionov 1 , I.P. Rodionovf 1 
1 Reagent Research & Development Center, Moscow, Russia
2 Space Research Institute RAS, Moscow, Russia
3 A.Yu. Ishlinsky Institute for Problems in Mechanics, Moscow, Russia
Accepted: 14.02.2017
DOI: 10.21046/2070-7401-2017-14-2-125-134
We investigate the feasibility of using aviation hyperspectral survey data for monitoring water bodies state and water quality (by example of the Nevskaya Guba area). The aviation survey was performed in October, 2015, from board of AN-2 airplane at an altitude of 1000 m and a speed 120 km/h. The height of the sun was about 17 degrees. The obtained hypercube data were recalibrated with respect to a reference white rubber-coated cloth 3x3 meters in size (used as a reference reflective surface). Hyperspectral images and spectrums of certain areas of water bodies of Nevskaya Guba near the protective dam in St. Petersburg area were processed. A comparison of our data to reference spectral data from literature showed a satisfactory similarity. To evaluate the concentration of total suspended solid material and phytoplankton in water, a regression analysis was used which established the concentration dependency on the average value of reflectance factor in the 590–710 nm range. The accuracy of the concentration estimate was within 12%. Overall results suggest feasibility of hyperspectral aerial monitoring the ecological state of water bodies.
Keywords: hyperspectrometer, spectrum, suspended solid, phytoplankton, basin, concentration, image, dam, environment
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