point sampling

[/pɔɪnt ˈsæmplɪŋ/]
nounpl: point samplings
amostragem pontual
1. A statistical sampling method where data is collected at specific, discrete points in space, time, or a population without considering intermediate values or continuous distribution
The researcher used point sampling to collect water quality data at five specific locations along the river.
O pesquisador usou amostragem pontual para coletar dados de qualidade da água em cinco locais específicos ao longo do rio.
2. In ecology and environmental science, a technique where observations or measurements are made at predetermined fixed locations rather than across a continuous area
Point sampling was employed to monitor vegetation changes at marked sites within the forest.
A amostragem pontual foi empregada para monitorar mudanças na vegetação em locais marcados dentro da floresta.
3. In graphics and image processing, selecting pixel or color values at specific coordinate points rather than interpolating across regions
The algorithm relies on point sampling to determine the texture at discrete vertices.
O algoritmo depende da amostragem pontual para determinar a textura em vértices discretos.
Point sampling is predominantly used in academic and technical contexts, particularly in environmental science, ecology, statistics, and computer graphics in both Brazil and Portugal. It reflects a methodological approach common in international scientific research, with terminology standardized across Portuguese-speaking academic communities.
Synonyms / Sinônimos
discrete samplingspot samplingfixed-point samplinglocation-based sampling
Antonyms / Antônimos
continuous samplingsystematic samplingarea samplingtransect sampling

Regional Variations

General Brazilian
amostragem pontual
Standard technical term used in statistics and environmental sciences
Portugal
amostragem pontual
Consistent with Brazilian usage; also may use 'amostragem em ponto' in some contexts
Academic/Technical
amostragem discreta
Alternative technical term emphasizing discrete nature of sampling points

Related Words

sampling methodstatistical samplingspatial samplingdata collectioninterpolationtransectquadrat sampling

Related Idioms & Phrases

spot-check sampling
take a point sample
sample at discrete points
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