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Explore Search: PCA

Filter Total Items: 35
Charts or Graphs
Graph of PCA scores, color coded by Fe2O3T content, and the loading vectors used to calculate the scores.

Python Hyperspectral Analysis Tool (PyHAT) Principal Component Analysis (PCA) Plot Example
Center News
Photo of field of pink thistles in a meadow.

National Seed Strategy Progress Report

Charts or Graphs
Image showing the PyHAT logo, screenshot of the GUI, and several plots

Python Hyperspectral Analysis Tool (PyHAT) Banner Image
Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Ordinal-occurrence states of American pikas in the northern Sierra Nevada and southern Cascade Range from surveys during 2014-2019

Charts or Graphs
Scatter plot showing PCA scores as points. Several points are marked in red as outliers.

Python Hyperspectral Analysis Tool (PyHAT) Outlier Identification Example
publication
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Synoptic sampling and principal components analysis to identify sources of water and metals to an acid mine drainage stream

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Biotic and abiotic degradation of 1,1,2,2-tetrachloroethane in wetland sediments: Geochemical and microbial community analyses

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Multivariate statistical approach to estimate mixing proportions for unknown end members

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Degradation of 1,1,2,2-tetrachloroethane in a freshwater tidal wetland: Field and laboratory evidence

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Contrasting nitrogen fate in watersheds using agricultural and water quality information

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Multivariate analyses with end-member mixing to characterize groundwater flow: Wind Cave and associated aquifers

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Multivariate analyses with end-member mixing to characterize groundwater flow: Wind Cave and associated aquifers

Infographics
Native Seed Development Process steps and associated accomplishments from 2022 and 2023. The center reads "20 Agencies 40+ Tribal partners 250+ non-federal partners $100+ million invested". Highlighted accomplishments include: 1,960+ seed collections, 900+ species involved in unique studies, 486 production fields established, 64 projects included seed production, 39 projects supported seed cleaning facilities, 98 projects planned or used seeds for restoration

Accomplishments in Native Seed Development in 2022 and 2023
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Vegetation characteristics important to common songbirds in east Texas

Charts or Graphs
Plot of PCA scores and loadings. The points in the scores plot are color coded based on the cluster assigned by k-means

Python Hyperspectral Analysis Tool (PyHAT) Principal Component Analysis K-Means Clustering Example
Presentations and Events
Transferring Deep Learning Knowledge for Scaling Up Hydrographic Feature Extraction Thumbnail

Transferring Deep Learning Knowledge for Scaling Up Hydrographic Feature Extraction
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On the multiple identities of stakeholders in wolf management in Minnesota, United States

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Documenting mudstone heterogeneity by use of principal component analysis of X-ray diffraction and portable X-ray fluorescence data: A case study in the Triassic Shublik Formation, Alaska North Slope

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Local ecological niche models, genotype associations and environmental data for desert tortoises.

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Hydrothermal contamination of public supply wells in Napa and Sonoma Valleys, California

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Molecular-level evidence provided by ultrahigh resolution mass spectrometry for oil-derived doc in groundwater at Bemidji, Minnesota

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Natural attenuation of chlorinated volatile organic compounds in a freshwater tidal wetland: Field evidence of anaerobic biodegradation

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Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature

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Analysis of environmental variation in a Great Plains reservoir using principal components analysis and geographic information systems

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Atomic displacements in ferroelectric trigonal and orthorhombic boracite structures

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Nitrate behavior in ground waters of the southeastern USA

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FFT-enhanced IHS transform method for fusing high-resolution satellite images

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Benthic foraminifers from the continental shelf and slope of the Gulf of Mexico: An indicator of shelf hypoxia

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Multivariate correlation between concentrations of selected herbicides and derivatives in outflows from selected U.S. midwestern reservoirs

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Multidecadal climate variability of global lands and oceans

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