2019 | Cyprus | Eirini Iskandar, Anna Koumi

Investigating detection of floating plastic litter from Space

Water issue adressed: Too dirty
Investigating detection of floating plastic litter from Space

The idea was to create a “plastic target”, in order to investigate if plastic floating in the sea can be detected, depending on its Spectral Signature using satellite or drone. Firstly, we took in situ and laboratory measurements on plastic to create a representative database and discovered its special characteristics which were used as guidelines to spot it. After creating and taking measurements on the target we analyzed the data and created a Prototype Code. Finally, by testing the Prototype Code of plastic bottle, we confirmed that accumulated plastic rubbish can be successfully detected using satellite or drone. Thus, a new, effective way of tracking plastic rubbish is introduced which can contribute in the protection of the marine environment.

This is how I came up with the idea for this project:

The littoral zone of Limassol is been polluted by manmade rubbish, especially plastic. Knowing the huge damage done to the marine environment, we were determined to find a way to prevent sea pollution as much as possible or to help the authorities clean the sea in a more effective way.

DOCUMENTATION

Investigating detection of floating plastic litter from Space It is commonly accepted that plastic consists the major pollutant factor in the sea areas, all around the world due to which life is threatened. Nevertheless, the amounts which are found in the sea, increase dramatically every year. Although multiple attempts have been done in order to figure a way of tracking it when accumulated, scientists haven’t found an efficient one yet. Fortunately, with a tool we created, the detection of plastic can be successfully achieved in smaller quantities than the required ones to be detected by the available to the public satellites. Beginning without motivation, noticing that Limassol’s littoral zone is extremely contaminated, especially with plastic, we decided to figure out a solution to this problem so as to achieve a safe, plastic free environment. First things first, knowing that each material reflects or absorbs sunlight radiation differently, we decided to investigate probable solutions using Remote Sensing Science. After getting familiar with its concept and instruments by attending classes during summer time, having hands-on experiences, and making experiments in the laboratories, we proceeded by taking actual measurements on the most commonly found materials in the sea areas, in both the laboratories of the technological university of Cyprus and in situ. Afterwards, the development of a unique spectral library followed, from which we decided to focus on plastic, since it’s the most destructive one. After gathering all information needed, the creation a floating plastic bottle target was achieved, so as to take measurements by both drone and satellite on it. Subsequently, data was analyzed, and a Prototype Code was created, based on the Spectral Signature of plastic. Finally, by testing the Prototype Code of plastic bottle over and over again, we confirmed that accumulated plastic rubbish can be successfully detected by drone or satellite. Thus, a new, effective way of tracking plastic rubbish is introduced which can contribute in the protection of the marine environment.

CONTACT WATERTANK

Ania Andersch

Programme manager ania.andersch@siwi.org +46 8 121 360 59