Data Access Form

Dataset Title:	Satellite-derived Shoreline Evolution in Continental Portugal (1984- 2024) (shoreline_20251124)
Institution:	+ATLANTIC_CoLAB (Dataset ID: shoreline)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Files \| Make a graph

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Variable	Minimum	Maximum
shoreline_seasonal (Seasonal Shoreline Position, m)	11.364999999999998	504.78140625
time (UTC)	1984-04-15T00:00:00Z	2024-10-15T00:00:00Z

id (Transect)	"TLA_0001"	"TLL_1571"
id_names (Beach)	"Aberta Nova (Grând..."	"Ínsua (Viana do Ca..."
class (40-year Trend)	"Accretion"	"Stable/Insignificant"
class_value (40-year Trend Value)	"+0.00 ± 0.04 m/year"	"-9.13 ± 1.41 m/year"
longitude (degrees_east)	-9.49358929166	-7.4034970383

latitude (degrees_north)	36.959797918	41.8700100005

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  shoreline_seasonal {
    Float64 _FillValue NaN;
    Float64 actual_range 11.364999999999998, 504.78140625;
    String ioos_category "Sea Level";
    String long_name "Seasonal Shoreline Position";
    Float64 missing_value NaN;
    String observation_type "satellite-derived shoreline";
    String processing_method "seasonally-averaged satellite-derived shorelines";
    String source "Pais, D.";
    String standard_name "crossshore_distance";
    String temporal_resolution "seasonal";
    String units "m";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 4.508352e+8, 1.7289504e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_sampling "seasonal";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  id {
    String comment "Unique Transect ID";
    String ioos_category "Identifier";
    String long_name "Transect";
  }
  id_names {
    String comment "Name of each beach sector";
    String ioos_category "Identifier";
    String long_name "Beach";
  }
  class {
    String comment "40-year Evolution Categorical Classification";
    String ioos_category "Time";
    String long_name "40-year Trend";
  }
  class_value {
    String comment "40-year Evolution Trend Value with Margin of Error (m/year)";
    String ioos_category "Time";
    String long_name "40-year Trend Value";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -9.49358929166, -7.4034970383;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 36.959797918, 41.8700100005;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
 }
  NC_GLOBAL {
    String area "Portugal Continental Coast";
    String cdm_data_type "Other";
    String citation "These data were collected and made freely available by +ATLANTIC CoLAB, http://colabatlantic.com";
    String comment "Satellite-derived Shoreline cross-shore positions extracted from Landsat and Sentinel imagery collections using CoastSat toolbox (Vos et al., 2019) and further processed by Pais, D. under +ATLANTIC CoLAB.";
    String contributor_name "0000-0001-7805-9086 - 0000-0002-9947-6724 - 0000-0001-9620-1998";
    String Conventions "CF-1.10, COARDS, ACDD-1.3";
    String creator_name "https://orcid.org/0000-0003-3176-8031";
    String creator_url "https://colabatlantic.com";
    String data_type "time-series data";
    String distribution_statement "These data are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact PI prior to any commercial use of data.";
    Float64 Easternmost_Easting -7.4034970383;
    String format_version "v1.0";
    Float64 geospatial_lat_max 41.8700100005;
    Float64 geospatial_lat_min 36.959797918;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -7.4034970383;
    Float64 geospatial_lon_min -9.49358929166;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical "meters above/below mean sea level";
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"2026-02-24T23:06:47Z (local files)
2026-02-24T23:06:47Z http://erddap.atlanticsense.com/erddap/tabledap/shoreline.html";
    String infoUrl "https://colabatlantic.com";
    String institution "+ATLANTIC_CoLAB";
    String institution_edmo_code "3348";
    String instrument "optical sensor";
    String instrument_vocabulary "###";
    String keywords "+atlantic, 1984-2024, 40-year, array, array-data, beach, class, class_value, colab, comprehensive, continental, crossshore, crossshore_distance, data, derived, distance, evolution, id_names, identifier, large, latitude, level, longitude, m/year, portugal, position, satellite, satellite-derived, sea, sea level, seasonal, shoreline, shoreline_seasonal, stewardship, system, time, transect, trend, value, year";
    String license "These data are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact PI prior to any commercial use of data.";
    String method "####";
    String netcdf_version "4.4.1.1";
    Float64 Northernmost_Northing 41.8700100005;
    String platform_type "satellite";
    String platform_vocabulary "####";
    String processing_level "L3";
    String product_version "v1.0";
    String qc_manual "ToBeUpdate";
    String references "ToBeUpdate";
    String scientific_support_contact "info@colabatlantic.com";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 36.959797918;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Satellite-derived Shoreline Evolution in Continental Portugal (1984-2024). shoreline_20251124. +ATLANTIC_CoLAB data from a local source.";
    String technical_support_contact "atlanticsense@colabatlantic.com";
    String time_coverage_end "2024-10-15T00:00:00Z";
    String time_coverage_resolution "irregular";
    String time_coverage_start "1984-04-15T00:00:00Z";
    String title "Satellite-derived Shoreline Evolution in Continental Portugal (1984-2024) (shoreline_20251124)";
    String update_interval "Not specified";
    String version_date "2025-11-21T17:50:11Z";
    Float64 Westernmost_Easting -9.49358929166;
  }
}

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