Shoreline change in coastal Natural World Hertiage Sites

This repository contains the data associated with the paper: Multi-decadal shoreline change in coastal Natural World Heritage Sites - a global assessment (http://doi.org/10.1088/1748-9326/ab968f).

It contains:

- 2020_transects_data_shorelines_linearity_geomorphology_final.csv: a dataset of transect-based shoreline and geomorphological datasets in 67 coastal Natural World Heritage Sites with available shoreline data.

-2020_transects_data_shorelines_strong_linear_geomorphology_final.csv: a dataset of transect-based strong linear trends (recessional, depositional and stable) and geomorphological datasets in 59 coastal Natural World Heritage Sites with strong linear behaviour.

Shorelines were derived from a global assessment of derived Landsat images (Luijendijk, A. et al.,2018, https://doi.org/10.1038/s41598-018-24630-6, Hagenaars, G. et al., 2018, 10.1016/j.coastaleng.2017.12.011 and Hagenaars, G. et al., 2017, http://resolver.tudelft.nl/uuid:34a0114b-5e39-4b52-9940-3a7e9f5a2982). Conditional and outlier data cleaning were undertaken on the raw shoreline dataset for further analysis.

The geomorphological data have been obtained from the following datasets:

Topography: Global Map DEM (2017) - https://globalmaps.github.io/

Land cover: Global Land Cover by National Mapping Organisations - GLCNMO (Kobayashi, T. et al., 2013, 10.5539/jgg.v9n3p1)

Coastal type: Worldwide Typology of Nearshore Coastal Systems (Dürr, H. H. et al., 2011, https://doi.org/10.1007/s12237-011-9381-y)

Lithology: Global Lithological Map - GliM (Hartmann, J. & Moosdorf, N., 2012, https://doi.org/10.1029/2012GC004370)

For each perpendicular transect to the satellite-derived shorelines, a set of data is provided in the table columns:

transect_id: unique identifier of the transect

Continent: continent of the transect

country_name: country of the transect

Intersect_lon: the longitude of the middle point of the transect drawn between the first available shoreline (1984 or more) and the latter available shoreline (2016).

Intersect_lon: the latitude of the middle point of the transect drawn between the first available shoreline (1984 or more) and the latter available shoreline (2016).

NAME: name of the coastal Natural World Heritage Site

ORIG_NAME: the original name of the coastal Natural World Heritage Site

INT_CRIT: criteria of selection of the coastal Natural World Heritage Site

dt_max: is the latest year for which SDS data points are available (2016)

dt_min: is the first year for which SDS data points are available (starts from 1984)

nb_shorelines: the number of shorelines available from dt_min to dt_max

cor: Pearson’s correlation coefficient (r)

p.value: Pearson’s correlation coefficient (r) p-value

cor_fact: classification of Pearson’s correlation coefficient (r)

0: Non-linear (-0.3 to 0.3).

1: Weak linear ( -0.7 to -0.3 or 0.3 to 0.7)

2: Strong linear (less than -0.7 or greater than 0.7)

coeflm: Ordinary Least Square linear regression rate (m yr-1)

std: standard deviation of the Ordinary Least Square linear regression rate (m yr-1)

Mean_DEM_Class: topography

1: 0 ≤ elevation ≤ 1 m (extremely low-lying)

2: 1 < elevation ≤ 10 m (low-lying)

3: 10 < elevation ≤ 50 m (middle)

4: 50 < elevation ≤ 400 m (high)

5: No data (transects without available elevation)

GLIM_categories: lithology

ev: Evaporites

ig: Polar ice and Glaciers

pa: Acid Plutonic Rocks

pb: Basic-Ultrabasic Plutonic Rocks

pi: Intermediate Plutonic Rocks

mt: Metamorphic Rocks

sc: Carbonate Sedimentary Rocks

sm: Mixed Sedimentary Rocks

ss: Siliciclastic Sedimentary Rocks

su: Unconsolidated Sediments

py Pyroclastic

va: Acid Volcanic Rocks

vb: Basic Volcanic Rocks

vi: Intermediate Volcanic Rocks

Land_Cover_Class: land cover

1: Coral reefs

2: Mangroves

3: Marshes

4: Vegetated

5: Non-vegetated

6: Urban areas

Coastal_type_Class_1: coastal types

1: Small deltas

2: Tidal systems

3: Lagoons

4: Fjords and fjärds

5: Large rivers

6: Large rivers with tidal influence

7: Karst-dominated stretches of coasts

8: Arheic (dry areas)

9: Islands

cor_classes_1: classification of Pearson’s correlation coefficient (r)

StrongLin: Strong linear (less than -0.7 or greater than 0.7)

WeakLin: Weak linear ( -0.7 to -0.3 or 0.3 to 0.7)

NonLin: Non-linear (-0.3 to 0.3).

shoreline_trend_classes: Ordinary Least Square linear regression rate (m/y) for strong linear shoreline behaviours

StrongLinSta: stable - shoreline change rate between -0.5 and 0.5 m yr-1 

StrongLinAcr: depositional - shoreline change rate >0.5 m yr-1

StrongLinErr: recessional - shoreline change rate <-0.5 m yr-1