Matches in SemOpenAlex for { <https://semopenalex.org/work/W4297691180> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W4297691180 endingPage "292" @default.
- W4297691180 startingPage "292" @default.
- W4297691180 abstract "Remote sensing is an important mechanism for spatiotemporal monitoring of vegetation. Vegetation indexes have been widely used in monitoring vegetated areas, to determine and estimate the index of leaf area, biomass, and photosynthetically active radiation, among others. In these indexes, the Normalized Difference Index Vegetation (NDVI) stands out, which indicates the health status of a vegetative canopy. Considering the proven applicability of this index, in addition to the relevant importance of the Caatinga biome, related to the need for monitoring at the expense of desertification processes, the article aimed to analyze temporal variations of the NDVI in a hydrographic basin of the Brazilian semiarid region, in the municipality of Itacuruba/PE, Brazil. The study area covers a hydrographic basin belonging to the São Francisco River. Remote sensing techniques were used to estimate the NDVI in four orbital images provided by NASA/USGS in the year 2020, with less than 10% clouds. Then, the data were subjected to descriptive statistical analysis to obtain minimum, maximum, mean, standard deviation, and coefficient of variation values. The results showed that the NDVI presented values ranging from -0.30 to 0.57. The means found ranged from 0.16 to 0.23 for the months studied, as well as in the standard deviation values, values between 0.06 and 0.09 were found, corroborating other correlated studies in the region. The coefficient of variation data showed average variability, according to the Warrick & Nielsen classification criteria. It is noteworthy that, in addition to the dry climate of the region, the shrubby vegetation presents physiological defense characteristics such as the fall of foliage. It was concluded that the use of remote sensing was effective in evaluating the spatial-temporal dynamics of the vegetation index in the watershed, managing to measure environmental variations at the expense of climate change." @default.
- W4297691180 created "2022-09-30" @default.
- W4297691180 creator A5011100664 @default.
- W4297691180 creator A5025550276 @default.
- W4297691180 date "2021-12-31" @default.
- W4297691180 modified "2023-09-27" @default.
- W4297691180 title "SPATIOTEMPORAL VARIATION OF THE VEGETATION INDEX BY NORMALIZED DIFFERENCE IN THE HYDROGRAPHIC BASIN OF PERNAMBUCO SEMIARID, BRAZIL" @default.
- W4297691180 doi "https://doi.org/10.29150/2237-2202.2021.251965" @default.
- W4297691180 hasPublicationYear "2021" @default.
- W4297691180 type Work @default.
- W4297691180 citedByCount "0" @default.
- W4297691180 crossrefType "journal-article" @default.
- W4297691180 hasAuthorship W4297691180A5011100664 @default.
- W4297691180 hasAuthorship W4297691180A5025550276 @default.
- W4297691180 hasBestOaLocation W42976911801 @default.
- W4297691180 hasConcept C100970517 @default.
- W4297691180 hasConcept C105795698 @default.
- W4297691180 hasConcept C109007969 @default.
- W4297691180 hasConcept C110872660 @default.
- W4297691180 hasConcept C111368507 @default.
- W4297691180 hasConcept C127313418 @default.
- W4297691180 hasConcept C131366478 @default.
- W4297691180 hasConcept C132651083 @default.
- W4297691180 hasConcept C142724271 @default.
- W4297691180 hasConcept C151730666 @default.
- W4297691180 hasConcept C1549246 @default.
- W4297691180 hasConcept C183688256 @default.
- W4297691180 hasConcept C18903297 @default.
- W4297691180 hasConcept C205649164 @default.
- W4297691180 hasConcept C22679943 @default.
- W4297691180 hasConcept C2776133958 @default.
- W4297691180 hasConcept C2780376076 @default.
- W4297691180 hasConcept C33559203 @default.
- W4297691180 hasConcept C33923547 @default.
- W4297691180 hasConcept C39432304 @default.
- W4297691180 hasConcept C49204034 @default.
- W4297691180 hasConcept C58640448 @default.
- W4297691180 hasConcept C59822182 @default.
- W4297691180 hasConcept C62649853 @default.
- W4297691180 hasConcept C71924100 @default.
- W4297691180 hasConcept C76256466 @default.
- W4297691180 hasConcept C78869512 @default.
- W4297691180 hasConcept C86803240 @default.
- W4297691180 hasConcept C89920630 @default.
- W4297691180 hasConceptScore W4297691180C100970517 @default.
- W4297691180 hasConceptScore W4297691180C105795698 @default.
- W4297691180 hasConceptScore W4297691180C109007969 @default.
- W4297691180 hasConceptScore W4297691180C110872660 @default.
- W4297691180 hasConceptScore W4297691180C111368507 @default.
- W4297691180 hasConceptScore W4297691180C127313418 @default.
- W4297691180 hasConceptScore W4297691180C131366478 @default.
- W4297691180 hasConceptScore W4297691180C132651083 @default.
- W4297691180 hasConceptScore W4297691180C142724271 @default.
- W4297691180 hasConceptScore W4297691180C151730666 @default.
- W4297691180 hasConceptScore W4297691180C1549246 @default.
- W4297691180 hasConceptScore W4297691180C183688256 @default.
- W4297691180 hasConceptScore W4297691180C18903297 @default.
- W4297691180 hasConceptScore W4297691180C205649164 @default.
- W4297691180 hasConceptScore W4297691180C22679943 @default.
- W4297691180 hasConceptScore W4297691180C2776133958 @default.
- W4297691180 hasConceptScore W4297691180C2780376076 @default.
- W4297691180 hasConceptScore W4297691180C33559203 @default.
- W4297691180 hasConceptScore W4297691180C33923547 @default.
- W4297691180 hasConceptScore W4297691180C39432304 @default.
- W4297691180 hasConceptScore W4297691180C49204034 @default.
- W4297691180 hasConceptScore W4297691180C58640448 @default.
- W4297691180 hasConceptScore W4297691180C59822182 @default.
- W4297691180 hasConceptScore W4297691180C62649853 @default.
- W4297691180 hasConceptScore W4297691180C71924100 @default.
- W4297691180 hasConceptScore W4297691180C76256466 @default.
- W4297691180 hasConceptScore W4297691180C78869512 @default.
- W4297691180 hasConceptScore W4297691180C86803240 @default.
- W4297691180 hasConceptScore W4297691180C89920630 @default.
- W4297691180 hasIssue "5" @default.
- W4297691180 hasLocation W42976911801 @default.
- W4297691180 hasOpenAccess W4297691180 @default.
- W4297691180 hasPrimaryLocation W42976911801 @default.
- W4297691180 hasRelatedWork W1977169689 @default.
- W4297691180 hasRelatedWork W2112542335 @default.
- W4297691180 hasRelatedWork W2361388814 @default.
- W4297691180 hasRelatedWork W2363265335 @default.
- W4297691180 hasRelatedWork W2386946511 @default.
- W4297691180 hasRelatedWork W2515891427 @default.
- W4297691180 hasRelatedWork W2580788664 @default.
- W4297691180 hasRelatedWork W2911874075 @default.
- W4297691180 hasRelatedWork W4297691180 @default.
- W4297691180 hasRelatedWork W647024330 @default.
- W4297691180 hasVolume "11" @default.
- W4297691180 isParatext "false" @default.
- W4297691180 isRetracted "false" @default.
- W4297691180 workType "article" @default.