Revisiting albedo from a fuzzy perspective
| Autor: | Yashar Falamarzi, Majid Habibi Nokhandan, Morteza Pakdaman |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Energy balance equation
Mathematical optimization 010504 meteorology & atmospheric sciences Perspective (graphical) 02 engineering and technology Albedo 01 natural sciences Fuzzy logic Theoretical Computer Science Control and Systems Engineering 0202 electrical engineering electronic engineering information engineering Computer Science (miscellaneous) Environmental science 020201 artificial intelligence & image processing Engineering (miscellaneous) Social Sciences (miscellaneous) 0105 earth and related environmental sciences |
| Zdroj: | Kybernetes. 51:2927-2937 |
| ISSN: | 0368-492X |
| DOI: | 10.1108/k-12-2020-0834 |
| Popis: | PurposeThe aim of this paper is to revisit the albedo for uncertainty. The albedo is considered as a fuzzy value due to some realistic reasons which they will be discussed in details. After defining an appropriate uncertain albedo by using fuzzy set theory, the related energy balance model is also redefined as a fuzzy differential equation by using the concept of fuzzy derivative.Design/methodology/approachThe well-known Earth energy balance model is redefined as a fuzzy differential equation by using the concept of fuzzy derivative. Thus, instead of an ordinary differential equation, a fuzzy differential equation arises which it's solution procedure will be discussed in details.FindingsResults indicate that the fuzzy uncertainty for albedo causes more real results after solving the fuzzy energy balance equation. Considering albedo as a fuzzy number is more realistic than considering a single certain number for albedo of a surface. This is due to this fact that the Earth's surface coverage is not crisp and the boundaries of different types of lands are not consistent. The proposed approach of this paper can help us to provide more realistic climate models and construct dynamical models which can model the albedo based on its variability.Originality/valueIn this paper, we defined fuzzy energy balance model as a fuzzy differential equation for the first time. We also, considered albedo as a fuzzy number which is another novel approach. |
| Databáze: | OpenAIRE |
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