In: Journal of Hydrology and Hydromechanics, vol. 63, no. 3
Joao De Lima - Valdemir Silva Jr. - M. Isabel De Lima - Joao Abrantes - Abelardo Montenegro
Detaily:
Rok, strany: 2015, 220 - 227
Kľúčové slová:
Rainfall; Thermography; Drop size distributions; Drop diameters.
URL originálneho zdroja: http://www.ih.savba.sk/jhh
O článku:
The infrared thermography has been successfully applied as a tool for high resolution imaging in different hydrological
studies. This exploratory experimental study aimed at evaluating the possibility of using infrared thermography
to determine the diameter of raindrops. Rain samples are collected on a pre-heated acrylic board, which is exposed to
rain during an instant, and thermograms are recorded. The area of the thermal stains (“signatures” of the raindrops)
emerging on the board is measured and converted to drop diameters, applying a calibration equation. Diameters of natural
raindrops estimated using this technique were compared with laser disdrometer measurements; the Nash-Sutcliffe efficiency
coefficient was used for evaluating the match between the resulting histograms of drop size distribution. Results
confirm the usefulness of this simple technique for sizing and counting raindrops, although it is unsatisfactory in light
rain or drizzle.
Ako citovať:
ISO 690:
De Lima, J., Silva Jr., V., De Lima, M., Abrantes, J., Montenegro, A. 2015. Revisiting simple methods to estimate drop size distributions: a novel
approach based on infrared thermography. In Journal of Hydrology and Hydromechanics, vol. 63, no.3, pp. 220-227. 0042-790X (until 2019) .
APA:
De Lima, J., Silva Jr., V., De Lima, M., Abrantes, J., Montenegro, A. (2015). Revisiting simple methods to estimate drop size distributions: a novel
approach based on infrared thermography. Journal of Hydrology and Hydromechanics, 63(3), 220-227. 0042-790X (until 2019) .