干旱区生态环境知识资源中心(Arid): Mathematical modelling of the intra-annual behaviour of NDVI in the Caatinga Biome, Brazil

Arid

DOI	10.5902/1980509837279
	Mathematical modelling of the intra-annual behaviour of NDVI in the Caatinga Biome, Brazil
	da Silva Filho, Rivaildo; Vasconcelos, Rochele Sheila; Galvao, Carlos de Oliveira; Alves Rufino, Iana Alexandra; de Brito Leite Cunha, John Elton
通讯作者	da Silva, R
来源期刊	CIENCIA FLORESTAL
ISSN	0103-9954
EISSN	1980-5098
出版年	2020
卷号	30 期号:2 页码:473-488
英文摘要	Vegetation indexes from remote sensing images are often used for land-cover monitoring and identification of biomass changes. They are also very useful to describe the relationships between the phenological cycle and the carbon sequestration, which are climate change indicators. The Caatinga land-cover is very heterogeneous, making hard the understanding of the land cover processes in different scales (spatial and temporal), due to seasonalities and human actions. The Landsat series products usually can describe spatial land-cover variations, with a low temporal scale, so far. This study aims to improve the temporal representation of the land cover by Landsat images for a Caatinga area. This article presents an evaluation, using a mathematical approach of three-parameter functions to describe the Normalized Difference Vegetation Index (NDVI). Each function performance was evaluated by the reduced chi-square (chi(2)) and determination coefficient (R-2) parameters. The analysis is performed for an annual period and considers land-cover changes by anthropic action. The Cauchy function seems the best option and presented an adjust up to 83% of the total (years and places), with an R-2 (average) of 0.82. The parameters of this function can be a valuable source for environmental studies in the Caatinga biome, supporting temporal analysis of the vegetation.
英文关键词	Semi-arid Vegetation Index Cauchy function Gap series filling
类型	Article
语种	葡萄牙语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000549396600015
WOS关键词	TIME-SERIES DATA ; PHENOLOGY ; DYNAMICS
WOS类目	Plant Sciences ; Forestry
WOS研究方向	Plant Sciences ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325076
作者单位	[da Silva Filho, Rivaildo] Univ Fed Campina Grande, Engn Recursos Nat, Ctr Tecnol & Recursos Nat, Rua Aprigio Veloso,Univ 882, BR-58429900 Campina Grande, Paraiba, Brazil; [Vasconcelos, Rochele Sheila] Univ Fed Pernambuco, Campus Caruaru,Rodovia Br 104 Km 59 S-N, BR-55014900 Nova Caruaru, PE, Brazil; [Galvao, Carlos de Oliveira; Alves Rufino, Iana Alexandra] Univ Fed Campina Grande, Unidade Acad Engn Civil, Ctr Tecnol & Recursos Nat, Rua Aprigio Veloso,Univ 882, BR-58429900 Campina Grande, Paraiba, Brazil; [de Brito Leite Cunha, John Elton] Univ Fed Campina Grande, Ctr Desenvolvimento Sustentavel Semiarido, Rua Francisco Braz,Varzea Redonda 258-272, BR-58540000 Sume, PB, Brazil
推荐引用方式 GB/T 7714	da Silva Filho, Rivaildo,Vasconcelos, Rochele Sheila,Galvao, Carlos de Oliveira,et al. Mathematical modelling of the intra-annual behaviour of NDVI in the Caatinga Biome, Brazil[J],2020,30(2):473-488.
APA	da Silva Filho, Rivaildo,Vasconcelos, Rochele Sheila,Galvao, Carlos de Oliveira,Alves Rufino, Iana Alexandra,&de Brito Leite Cunha, John Elton.(2020).Mathematical modelling of the intra-annual behaviour of NDVI in the Caatinga Biome, Brazil.CIENCIA FLORESTAL,30(2),473-488.
MLA	da Silva Filho, Rivaildo,et al."Mathematical modelling of the intra-annual behaviour of NDVI in the Caatinga Biome, Brazil".CIENCIA FLORESTAL 30.2(2020):473-488.