{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T00:54:12Z","timestamp":1768438452748,"version":"3.49.0"},"reference-count":61,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2023,3,20]],"date-time":"2023-03-20T00:00:00Z","timestamp":1679270400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Trinity College Dublin, Provost\u2019s Ph.D. Scholarship","award":["2018-CCRP-LS.2"],"award-info":[{"award-number":["2018-CCRP-LS.2"]}]},{"name":"Environmental Protection Agency of Ireland","award":["2018-CCRP-LS.2"],"award-info":[{"award-number":["2018-CCRP-LS.2"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Peatlands store up to 2320 Mt of carbon (C) on only ~20% of the land area in Ireland; however, approximately 90% of this area has been drained and is emitting up to 10 Mt C per year. Gross primary productivity (GPP) is a one of the key components of the peatland carbon cycle, and detailed knowledge of the spatial and temporal extent of GPP under changing management practices is imperative to improve our predictions of peatland ecology and biogeochemistry. This research assesses the relationship between remote sensing and ground-based estimates of GPP for a near-natural peatland in Ireland using eddy covariance (EC) techniques and high-resolution Sen-tinel 2A satellite imagery. Hybrid models were developed using multiple linear regression along with six widely used conventional indices and a light use efficiency model. Estimates of GPP using NDVI, EVI, and NDWI2 hybrid models performed well using literature-based light use efficiency parameters and showed a significant correlation from 89 to 96% with EC-derived GPP. This study also reports additional site-specific light use efficiency parameters for dry and hydrologically normal years on the basis of light response curve methods (LRC). Overall, this research has demonstrated the potential of combining EC techniques with satellite-derived models to better understand and monitor key drivers and patterns of GPP for raised bog ecosystems under different climate scenarios and has also provided light use efficiency parameters values for dry and wetter conditions that can be used for the estimation of GPP using LUE models across various site and scales.<\/jats:p>","DOI":"10.3390\/rs15061673","type":"journal-article","created":{"date-parts":[[2023,3,20]],"date-time":"2023-03-20T07:56:37Z","timestamp":1679298997000},"page":"1673","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Development of Hybrid Models to Estimate Gross Primary Productivity at a Near-Natural Peatland Using Sentinel 2 Data and a Light Use Efficiency Model"],"prefix":"10.3390","volume":"15","author":[{"given":"Ruchita","family":"Ingle","sequence":"first","affiliation":[{"name":"Department of Botany, Trinity College Dublin, D02 PN40 Dublin, Ireland"}]},{"given":"Saheba","family":"Bhatnagar","sequence":"additional","affiliation":[{"name":"BeZero Carbon Ltd., London EC1Y8QE, UK"}]},{"given":"Bidisha","family":"Ghosh","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1599-1105","authenticated-orcid":false,"given":"Laurence","family":"Gill","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland"}]},{"given":"Shane","family":"Regan","sequence":"additional","affiliation":[{"name":"National Parks & Wildlife Service, D07 N7CV Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2897-9711","authenticated-orcid":false,"given":"John","family":"Connolly","sequence":"additional","affiliation":[{"name":"Department of Geography, Trinity College Dublin, D02 PN40 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1965-8932","authenticated-orcid":false,"given":"Matthew","family":"Saunders","sequence":"additional","affiliation":[{"name":"Department of Botany, Trinity College Dublin, D02 PN40 Dublin, Ireland"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"182","DOI":"10.2307\/1941811","article-title":"Northern peatlands: Role in the carbon cycle and probable responses to climatic warming","volume":"1","author":"Gorham","year":"1991","journal-title":"Ecol. 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