Matches in SemOpenAlex for { <https://semopenalex.org/work/W1941563793> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W1941563793 abstract "The relationship between field measurements of vegetation in a semi arid region andNDVI from the 1 km NOAA AVHRR was investigated within this study. The Hoanibcatchment in the northwestern Namibia was chosen as study area. The fieldmeasurements were carried out during the month of February 1999. Different NDVIvalues and combinations of NDVI were used and it was found that the integratedNDVI until the time of the field measurements correlated best to the grass vegetation.No significant correlations were found with the woody vegetation.The utility of non-destructive measurements of vegetation was also examined. Sincedestructive measurements of woody vegetation are both time-consuming and harmfulto the environment, two different non-destructive methods were compared. It wasfound that the result of the two methods differed considerably for species and growthforms that were not recorded in the areas where the equations were established. Therelationship between NDVI and grass measured with destructive or non-destructivemethods was also compared. It was found that a non-destructive method returnedalmost as high correlation values as the destructive method.The relationship between NDVI and vegetation for all plots (with a large precipitationgradient) were compared to the relationship for the most easterly plots (with a smallprecipitation gradient) to draw attention to the fact that a trend in the data setimproves the correlation values. This was also the case in the study.Finally, a Monte Carlo simulation was used to study the sensitivity of the calculatednet primary production, using the Monteith equation, to variations in the e, a and bparameters. It was found that the NPP was very sensitive to variations in e but lesssensitive to variations in a and b." @default.
- W1941563793 created "2016-06-24" @default.
- W1941563793 creator A5006811641 @default.
- W1941563793 creator A5076891316 @default.
- W1941563793 date "2000-01-01" @default.
- W1941563793 modified "2023-09-27" @default.
- W1941563793 title "The utility of NOAA AVHRR data for vegetation studies in semi-arid regions : a minor field study in the Hoanib catchment of Namibia" @default.
- W1941563793 hasPublicationYear "2000" @default.
- W1941563793 type Work @default.
- W1941563793 sameAs 1941563793 @default.
- W1941563793 citedByCount "23" @default.
- W1941563793 crossrefType "journal-article" @default.
- W1941563793 hasAuthorship W1941563793A5006811641 @default.
- W1941563793 hasAuthorship W1941563793A5076891316 @default.
- W1941563793 hasConcept C100970517 @default.
- W1941563793 hasConcept C107054158 @default.
- W1941563793 hasConcept C111368507 @default.
- W1941563793 hasConcept C126645576 @default.
- W1941563793 hasConcept C127313418 @default.
- W1941563793 hasConcept C132651083 @default.
- W1941563793 hasConcept C142724271 @default.
- W1941563793 hasConcept C150772632 @default.
- W1941563793 hasConcept C151730666 @default.
- W1941563793 hasConcept C153294291 @default.
- W1941563793 hasConcept C1549246 @default.
- W1941563793 hasConcept C187320778 @default.
- W1941563793 hasConcept C205649164 @default.
- W1941563793 hasConcept C2776133958 @default.
- W1941563793 hasConcept C39432304 @default.
- W1941563793 hasConcept C58640448 @default.
- W1941563793 hasConcept C62649853 @default.
- W1941563793 hasConcept C71924100 @default.
- W1941563793 hasConcept C76886044 @default.
- W1941563793 hasConceptScore W1941563793C100970517 @default.
- W1941563793 hasConceptScore W1941563793C107054158 @default.
- W1941563793 hasConceptScore W1941563793C111368507 @default.
- W1941563793 hasConceptScore W1941563793C126645576 @default.
- W1941563793 hasConceptScore W1941563793C127313418 @default.
- W1941563793 hasConceptScore W1941563793C132651083 @default.
- W1941563793 hasConceptScore W1941563793C142724271 @default.
- W1941563793 hasConceptScore W1941563793C150772632 @default.
- W1941563793 hasConceptScore W1941563793C151730666 @default.
- W1941563793 hasConceptScore W1941563793C153294291 @default.
- W1941563793 hasConceptScore W1941563793C1549246 @default.
- W1941563793 hasConceptScore W1941563793C187320778 @default.
- W1941563793 hasConceptScore W1941563793C205649164 @default.
- W1941563793 hasConceptScore W1941563793C2776133958 @default.
- W1941563793 hasConceptScore W1941563793C39432304 @default.
- W1941563793 hasConceptScore W1941563793C58640448 @default.
- W1941563793 hasConceptScore W1941563793C62649853 @default.
- W1941563793 hasConceptScore W1941563793C71924100 @default.
- W1941563793 hasConceptScore W1941563793C76886044 @default.
- W1941563793 hasLocation W19415637931 @default.
- W1941563793 hasOpenAccess W1941563793 @default.
- W1941563793 hasPrimaryLocation W19415637931 @default.
- W1941563793 hasRelatedWork W118484912 @default.
- W1941563793 hasRelatedWork W1685409499 @default.
- W1941563793 hasRelatedWork W1687472573 @default.
- W1941563793 hasRelatedWork W1687603428 @default.
- W1941563793 hasRelatedWork W1694387135 @default.
- W1941563793 hasRelatedWork W1698754463 @default.
- W1941563793 hasRelatedWork W1700583932 @default.
- W1941563793 hasRelatedWork W1702593881 @default.
- W1941563793 hasRelatedWork W1711056617 @default.
- W1941563793 hasRelatedWork W1714524711 @default.
- W1941563793 hasRelatedWork W1716431608 @default.
- W1941563793 hasRelatedWork W1718222448 @default.
- W1941563793 hasRelatedWork W1721469285 @default.
- W1941563793 hasRelatedWork W1752011693 @default.
- W1941563793 hasRelatedWork W1752485809 @default.
- W1941563793 hasRelatedWork W1773917346 @default.
- W1941563793 hasRelatedWork W1854754933 @default.
- W1941563793 hasRelatedWork W1859183905 @default.
- W1941563793 hasRelatedWork W1906477764 @default.
- W1941563793 hasRelatedWork W2126740516 @default.
- W1941563793 isParatext "false" @default.
- W1941563793 isRetracted "false" @default.
- W1941563793 magId "1941563793" @default.
- W1941563793 workType "article" @default.