RAhjVniFrn

https://w3id.org/np/RAhjVniFrnUdQr_lRZUACCocinFF3BrIkcTjhWA9qM_YA

 Benthic river algae mapping using hyperspectral imagery from unoccupied aerial vehicles FAIRDigitalObject article ▼ comment... approve/disapprove... edit as derived nanopublication... create new with same template...

https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

http://www.w3.org/1999/02/22-rdf-syntax-ns#type is a https://w3id.org/fdof/ontology#FAIRDigitalObject FAIR Digital Object (FDO) .

https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

http://www.w3.org/2000/01/rdf-schema#label has the label (this is a literal)

"Benthic river algae mapping using hyperspectral imagery from unoccupied aerial vehicles"

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

http://www.w3.org/2000/01/rdf-schema#comment has description (this is a literal)

"The increasing prevalence of nuisance benthic algal blooms in freshwater systems has led to water quality monitoring programs based on the presence and abundance of algae. Large blooms of the nuisance filamentous algae, Cladophora glomerata, have become common in the waters of the Upper Clark Fork River in western Montana. To aid in the understanding of algal growth dynamics, unoccupied aerial vehicle (UAV)-based hyperspectral images were gathered at three field sites along the length of the river throughout the growing season of 2021. Select regions within images covering the spectral range of 400 to 850 nm were labeled based on a combination of professional judgment and spectral profiles and used to train a random forest classifier to identify benthic algal growth across several classes, including benthic growth dominated by Cladophora (Clado), benthic growth dominated by growth forms other than Cladophora (non-Clado), and areas below a visually detectable threshold of benthic growth (bare substrate). After classification, images were stitched together to produce spatial distribution maps of each river reach while also calculating the average percent cover for each reach, achieving an accuracy of approximately 99% relative to manually labeled images. Results of this analysis showed strong variability across each reach, both temporally (up to 40%) and spatially (up to 46%), indicating that UAV-based imaging with high-spatial resolution could augment and therefore improve traditional measurement techniques that are spatially limited, such as spot sampling. Major findings: The study successfully utilized UAV-based hyperspectral imaging and a random forest classification model to map benthic algae in the Upper Clark Fork River with 99% accuracy, effectively distinguishing Cladophora from other growth forms and bare substrate. The researchers discovered significant spatial and temporal variability in algal coverage, with levels fluctuating by over 40% within short river reaches, demonstrating that high-resolution remote sensing provides a more comprehensive and accurate assessment of ecosystem health than traditional spot-sampling."

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

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article

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

http://purl.org/dc/terms/creator has creator https://orcid.org/0000-0002-5258-5472

0000-0002-5258-5472

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

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0000-0003-1056-1269

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

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"joseph.shaw@montana.edu"

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

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en

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

http://purl.org/dc/terms/subject has domain http://aims.fao.org/aos/agrovoc/c_6498

Remote Sensing

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

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045k5vt03

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

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"2023-07-31"

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

https://www.w3.org/ns/dcat#endDate has end date (this is a literal)

"2024-06-13"

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https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

1.JRS.18.024513.full

https://schema.org/funder has funder https://ror.org/02w0trx84

02w0trx84

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This is the identifier for the assertion of this nanopublication. https://w3id.org/np/RAhjVniFrn.../assertion The assertion above http://www.w3.org/ns/prov#wasAttributedTo is attributed to https://orcid.org/0009-0008-8411-2742

Emily Regalado

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This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication http://purl.org/dc/terms/creator is created by https://orcid.org/0009-0008-8411-2742

Emily Regalado

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This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication http://purl.org/dc/terms/license is published under the license https://creativecommons.org/licenses/by/4.0/

Attribution 4.0 International (CC BY 4.0)

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https://orcid.org/0009-0008-8411-2742

Emily Regalado

http://xmlns.com/foaf/0.1/name has the name (this is a literal)

"Emily Regalado"

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"2026-01-14T05:05:35.016Z"

(xsd:dateTime) .

This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication links to the assertion template that was used to create this nanopublication https://w3id.org/np/o/ntemplate/wasCreatedFromTemplate was created from the assertion template https://w3id.org/np/RArM5GTwgx...

RArM5GTwgx

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This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication links to the provenance template that was used to create this nanopublication https://w3id.org/np/o/ntemplate/wasCreatedFromProvenanceTemplate was created from the provenance template https://w3id.org/np/RA7lSq6MuK...

RA7lSq6MuK

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This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication links to the publication info template that was used to create this nanopublication https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate was created from the publication info template https://w3id.org/np/RA0J4vUn_d...

RA0J4vUn_d

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This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication links to the publication info template that was used to create this nanopublication https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate was created from the publication info template https://w3id.org/np/RAukAcWHRD...

RAukAcWHRD

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This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication the nanopublication consists of an introduction of the given resource http://purl.org/nanopub/x/introduces introduces https://www.spiedigitallibrary...l/10.1117/1.JRS.18.024513.full

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sig

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"RSA"

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http://purl.org/nanopub/x/hasPublicKey has the public key (this is a literal)

"MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxzr6UBGMW6c8tegz0babaledWUEQ0PLDE4tp7Iinbe2DZtAtY5JUptKYuStWDZx+QER4808P8dejNWRnBDzgthYJm/AyNSXflHSJhz2+NC+h7RylOLxbwLEQocmyKKiYxa2gT85m6ajVL2M6TnfG67nnK+K2f7iCGL6wYXRITD1q+7+5SWqBdDXIV921W4IKWaD2GJk+NRBoOqQhbsrk8Tn5XsNd7DMYVHk47oMDGbeBnrOIoRPsbBgAcoCsxxhiB9yN6Lf8EUbnlXVEDzJuZk048L1BDZL+6nkA8btTQGP2ijUFWA7rTrod3LjUDQWLZS95njjl867dtmv/znYkzwIDAQAB"

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http://purl.org/nanopub/x/hasSignature has the signature (this is a literal)

"USdDdwPqbGA7dCWQB2g79EyT1wxVXcDCYlEsZUJPwL22rDNCltFsnU3kqZNHjsPLOgWdfMIpbvpmtMwb8Mjg8RePH8QhxKZH7M/NGDpMYhC7IPdwb9lKJgVygWi+ZCBevDs+vcM7ZVcHrt+h6YwB8tDc3DVsgS0d0den8mKBln12lS39b8rOdlb8SPNPFjrsrW2CWWwNgbIEkg1TFlLSYmxbpkB1vTRkBfPxae4D8E7aa9SKKcCMfgFQySam8qTd6LjpWWVCvJ6duPjuN58wtmjEyutFEdKuNwOIM04iD/PIY3ZU0xAllE+8TwA4GMdptQKc4E7qMt5a5nec8m3nbQ=="

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This is a local identifier minted within the nanopublication. https://w3id.org/np/RAhjVniFrn.../sig

sig

http://purl.org/nanopub/x/signedBy is signed by https://orcid.org/0009-0008-8411-2742

Emily Regalado

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This is the identifier for this whole nanopublication. https://w3id.org/np/RAhjVniFrn... This nanopublication http://purl.org/nanopub/x/wasCreatedAt was created at https://nanodash.knowledgepixels.com/

nanodash.knowledgepixels.com

.

Emily Regalado, 14 Jan 2026, 05:05:35 UTC

References