G-P07 · TOPIC · ports-and-maritime-infrastruGCRI dossier · service level R0
GCRIOceans and CoastsIn development
Topic dossier · Oceans and Coasts

Ports and maritime infrastructure

Ports, coastal roads, power plants, airports and defences sit at the shoreline because they need the sea or the flat land beside it. That location exposes them to storm surge, waves, wind and rising sea level, and port disruption interrupts trade, fuel and food supply. This page sets out how coastal infrastructure is affected by ocean hazards, how exposure is assessed, and what evidence serves the authorities and operators responsible.

01In brief

The short answer.

Port climate adaptation is the adjustment of ports and coastal infrastructure to storm surge, waves, wind and rising sea level. Ports are exposed by design at the water's edge, operational downtime can cost more than physical damage, and disruption spreads inland through roads, rail and supply chains.

02Geography

Ocean state in Pacific Island states.

For ports and maritime infrastructure, in GCRI's spatial-intelligence reading, the map opens on marine heat, sea temperature, chlorophyll and true-colour imagery with relief in 3D, framed on Pacific Island states; every other NASA layer, live feed and forecast waits in the layer list.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 4

Ocean state, for this page

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

For ports and maritime infrastructure, in GCRI's spatial-intelligence reading, the map opens on marine heat, sea temperature, chlorophyll and true-colour imagery with relief in 3D, framed on Pacific Island states; every other NASA layer, live feed and forecast waits in the layer list.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONET · GDACS · Copernicus Sentinel-2 L2ASources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • GHRSST Level 4 MUR analyses, NASA Jet Propulsion Laboratory; distributed by the NASA Physical Oceanography DAAC (PO.DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • MODIS Aqua ocean colour, NASA Ocean Biology Processing Group; distributed by the NASA Ocean Biology DAAC (OB.DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). CC BY 4.0
  • VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
  • Live: NASA EONET Events are indicative, not official warnings.
  • Live: GDACS (EC JRC / UN OCHA) Events are indicative, not official warnings.
  • Observed (EO): Copernicus Sentinel-2 L2A (contains modified Copernicus Sentinel data 2026), Microsoft Planetary Computer
  • Optional layers (35 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.

Layers and dates

  • Sea surface temperature anomaly: GHRSST MUR25, NASA JPL PO.DAAC · 12 Oct 2026
  • Sea surface temperature: GHRSST MUR, NASA JPL PO.DAAC · 12 Oct 2026
  • Ocean chlorophyll-a concentration: MODIS Aqua ocean colour, NASA OB.DAAC · 12 Oct 2026
  • True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026
  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026

03Console

Coastal adaptation pathways, in outline.

The working screen behind this subject: its structure, terms and states. Names are placeholders and values illustrative.

Coastal adaptation pathways

Ports and maritime infrastructure · Coastal zone A · Sea level scenario set

Tipping point in 19 yearsGCRI · Oceans and Coasts

Flood extent by scenario

placeholder coastline

PortTownPlantSeaBands: 1-in-10 · 1-in-100 · 1-in-1000N

Relative sea level

Adaptation pathways

Dune nourishment0.41Raise seawallOvertopping twice in 5 yr
Raise seawall0.710Managed realignmentSeawall at design limit
Managed realignment1.311Relocate assetsCommunity decision
Coastal adaptation pathways: the screen's structure, terms and states for Ports and maritime infrastructure.Placeholder names and illustrative values; a design, not a record or a live system.
04The question

Ports and maritime infrastructure: how the risk develops.

Coastal transport and continuity. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.

Mechanism

Ports are exposed by design

Ports sit at the water's edge with low quays, cranes and storage. Storm surge and waves flood terminals, damage equipment and close channels.

Mechanism

Wind and waves stop operations

Cranes stop above wind limits, and pilots and ships cannot enter in high waves. Operational downtime can exceed physical damage in cost.

Mechanism

Rising seas reduce margins

Quay heights and drainage designed for past sea levels lose freeboard as the sea rises, so the same storm floods more often.

Mechanism

Coastal assets connect inland

Ports depend on roads, rail, power and fuel supply that may also flood. Disruption spreads inland through supply chains.

05Key terms

Terms used on this page.

Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.

TermDefinition
FreeboardThe height of a structure above the water level, which shrinks as the sea rises.
Operational downtimeTime when port operations stop because conditions exceed safe limits.
BreakwaterA structure built offshore or at a harbour entrance to reduce wave energy.
06Indicators

What is measured, and how well.

Each indicator carries its unit, its cadence, the kind of source behind it and the evidence label a value would carry. No values are shown: a programme supplies them under its own authority.

IndicatorUnitCadenceSource typeLabel
Quay elevation above extreme sea levelmetresper assessmentPort surveys and sea-level analysisESTIMATED
Operational downtime from weatherhours per yearannualPort operational recordsOBSERVED
Coastal infrastructure in flood hazard zonescount and valueper assessmentAsset maps and hazard mapsESTIMATED
Storm damage to port facilitiesevents with recorded damageannualPort and insurance recordsREPORTED
Wave height at harbour entrancemetreshourlyWave buoys and modelsOBSERVED
Ports with climate adaptation planscountper assessmentPort authority disclosuresDECLARED
07Canvas

From sources to decisions.

The topic as a computational graph: named sources feed the methods, an evidence review gates the outputs, and the decisions stay with the authorities that hold them.

Pipeline canvas · Ports and maritime infrastructure as a run graphDesign, not a record
Ports and maritime infrastructure: coastal flood risk and adaptation pathwaysSea level scenarios combined with storm surge and tide give extreme water levels by return period; a flood model maps exposure and damage; adaptation pathways sequence measures with signals for switching before tipping points. Design of the process, not a record of a run.

Fig. 02Nodes carry their type, two metric rows and a state; connectors show what feeds what; dashed frames name the owners; the timeline is the cadence. Design of the pipeline, not a record of a run.

08Sources

Where the evidence comes from.

Named public datasets and institutional records, each with its licence class. Sources by agreement are used only under their terms and never republished.

SourceWhat it givesLicence class
UNCTAD climate adaptation of ports reports and surveysPort exposure and adaptation practicePublic, UNCTAD terms (to check)
PIANC guidance on climate change adaptation for waterborne transport infrastructureEngineering guidance for ports and waterwaysLicence per publication
Copernicus Marine Service wave and sea level productsWave and water level hindcasts and forecastsFree, Copernicus Marine licence
IMF PortWatchPort activity and disruption estimatesPublic, IMF terms (to check)
Coastal infrastructure from OpenStreetMapLocations of ports, roads and facilitiesOpen, ODbL
09Decisions

Who decides, and what the evidence serves.

Oceans and Coasts prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.

Who decidesThe questionEvidence this page serves
Port authorities and operatorsWhich adaptation measures to invest in and whenExposure assessments; downtime analyses
Ministries of transportWhich coastal assets need protection or relocationInfrastructure hazard overlays
Coastal engineers and designersWhich design sea levels and wave conditions to adoptExtreme sea level and wave evidence

Outputs this topic produces

  • Port exposure assessments to surge, waves and sea-level rise
  • Operational downtime analyses from wave and wind data
  • Design sea level reviews for port upgrades
  • Evidence notes on port adaptation
10Core questions

The questions experts ask.

  • Which port functions are critical, and which hazards can stop them?
  • How long can a port be closed before supply of fuel, food or medicines is affected?
  • Do quay heights, breakwaters and drainage still perform under higher sea levels?
  • How do port disruptions propagate through shipping networks and inland logistics?
  • Which dependencies on power, communications and labour create hidden single points of failure?
11Mechanisms

How ports are disrupted.

Direct physical damage comes from surge and wave overtopping, wind damage to cranes and warehouses, and scour of foundations. Many disruptions are indirect: navigation channels silt up after storms, power or communications fail, access roads flood, or workers cannot reach the port. Heat affects equipment and workers, and low river levels can disrupt inland waterway connections that feed coastal ports.

Shipping networks transmit disruption. A closure at a hub port causes vessels to divert or queue, congestion spreads to neighbouring ports, and schedules take weeks to recover. Islands and remote coasts served by a single port can face shortages quickly. Sea-level rise lowers the effective freeboard of quays and breakwaters, so design margins chosen decades ago shrink.

Ports also shape the coast around them. Dredging, reclamation and breakwaters alter sediment transport and habitats, so port development and adaptation have ecological effects that feed back into flood exposure and fisheries along neighbouring shores.

12Methods and data

Engineering and network analysis.

Engineering

Fragility and design

Fragility curves relate hazard intensity to damage for port assets; design standards set heights and loads.

Networks

Shipping and logistics models

Network models of routes and hinterland connections estimate how closures propagate.

Data

Vessel tracking

Automatic identification system data show vessel movements and port calls; access and coverage vary.

Limits: port asset data are often commercially sensitive or incomplete, fragility data for port equipment are limited, and network models simplify how shippers and operators adapt.

14Questions

Questions and answers.

Why are ports vulnerable to climate change?
Because they are built at the water's edge at low elevations, and storm surge, waves, wind and rising sea level all affect their structures and operations.
What is freeboard?
The height between the water level and the top of a structure such as a quay or seawall, which shrinks as sea level rises.
Can ports adapt?
Yes, by raising quays, improving drainage, strengthening breakwaters, adjusting operations and planning for relocation, usually in stages as sea level rises.
Does the platform assess individual ports?
Only in reviewed research cases with the data owner's permission. It does not publish sensitive operational detail.
Is port engineering the platform's focus?
Port engineering is one input. The platform's focus is the interdisciplinary picture: hazard, ecosystem, network and community together.
Where is port continuity tested?
In the Nexus Universe theme on coastal flood and port continuity, an exercise setting whose results are labelled as exercises.
Oceans and Coasts

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