Data for "Rapid seaward expansion of seaport footprints worldwide"

<p>[updated November&nbsp;2023]</p><p>This dataset comprises data and code used in "Rapid seaward expansion of seaport footprints worldwide" (Sengupta &amp; Lazarus, 2023; <a href="https://doi.org/10.1038/s43247-023-01110-y">https://doi.org/10.1038/s43247-023-01110-y</a>).</p><p>This repository includes three .csv files, one .xlsx file, and a .ipynb file:</p><p><strong>'Sengupta_Lazarus_REC_1990_2020_v05.csv' </strong>– annual time series of seaward expansion&nbsp;(km^2) between 1990–2020&nbsp;through coastal reclamation&nbsp;for 65 of the world's top 100 container seaports in 2020, as ranked by reported container throughput&nbsp;(<a href="https://lloydslist.maritimeintelligence.informa.com/-/media/lloyds-list/images/top-100-ports-2021/top-100-ports-2021-digital-edition.pdf">Lloyd's List, 2021</a>). Dataset includes Year, Seaport, Country, Region, and Reclaimed area (km^2) [raw measurement].&nbsp;</p><p><strong>'Sengupta_Lazarus_REC_TEU_2011_2020_v03.csv'</strong>&nbsp;–&nbsp;annual time series of seaward expansion&nbsp;(km^2) and reported container throughput (millions TEU)&nbsp;between 2011–2020 for 43 of the world's top 100 container seaports in 2020, as ranked by reported container throughput&nbsp;(<a href="https://lloydslist.maritimeintelligence.informa.com/-/media/lloyds-list/images/top-100-ports-2021/top-100-ports-2021-digital-edition.pdf">Lloyd's List, 2021</a>).&nbsp;Dataset includes Year, Seaport, Country, Region, Reclaimed area (km^2) [raw measurement], and TEU (millions), collated from archived Lloyd's List reports.</p><p><strong>'Sengupta_Lazarus_REC_TEU_totals_v04.csv'</strong> – Simplified dataset listing total seaward expansion&nbsp;(km^2) and container throughput in 2020 for 65 of the world's top 100 container seaports in 2020, as ranked by reported container throughput&nbsp;(<a href="https://lloydslist.maritimeintelligence.informa.com/-/media/lloyds-list/images/top-100-ports-2021/top-100-ports-2021-digital-edition.pdf">Lloyd's List, 2021</a>).&nbsp;Dataset includes Seaport, Country, Region, Reclaimed area (km^2) [raw measurement], ranked list of seaports by expansion extent,&nbsp;and TEU (millions) handled&nbsp;in 2020, and Lloyd's List rank in 2020 (<a href="https://lloydslist.maritimeintelligence.informa.com/-/media/lloyds-list/images/top-100-ports-2021/top-100-ports-2021-digital-edition.pdf">Lloyd's List, 2021</a>).</p><p><strong>'Sengupta_Lazarus_2023_ports_excluded_v2.xlsx'</strong> – contains list of 35 ports excluded from thus analysis because they are either not on an open coastline (e.g. estuarine, riverine) or expanded less than 1 km^2 seaward between 1990–2020.</p><p><strong>'RECLAIM_port_trajectories_v11.ipynb' </strong>– Jupyter notebook for data wrangling and plotting figures presented in Sengupta &amp; Lazarus (2023). (Note that this notebook does not produce the map-based figures presented in that work.)</p><p>The method for calculating reclaimed area over time in Google Earth Engine (GEE) is described in Sengupta et al. (<a href="https://doi.org/10.1029/2022EF002927">2023</a>), and the GEE code is available here:&nbsp;<a href="https://github.com/dhritirajsen/Mapping_Coastal_land_reclamation">https://github.com/dhritirajsen/Seaport_reclamation</a></p><p>These data and code are also available here:&nbsp;<a href="https://github.com/edlazarus/Seaports">https://github.com/edlazarus/Seaports</a></p>