Data Access Form

Dataset Title:	Extreme Value Analysis output (twl_extremes)
Institution:	+ATLANTIC_CoLAB (Dataset ID: twl_extremes)
Information:	Summary \| License \| Metadata \| Background \| Files \| Make a graph

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Variable	Minimum	Maximum
return_value (m)	1.9673793285334378	11.285275968465076
return_value_observed
lower_ci (Lower confidence interval, m)	1.9204067797241047	10.444244480748086
upper_ci (Upper confidence interval, m)	2.0572653927795126	11.943585133440966
return_period (1)	1.0	100.0
return_period_observed
id	"P002"	"PZB2"

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  return_value {
    Float64 _FillValue NaN;
    Float64 actual_range 1.9673793285334378, 11.285275968465076;
    String comment "Return value estimated from fitted distribution per return period.";
    String coordinates "id latitude longitude";
    String ioos_category "Unknown";
    String long_name "Return value";
    String observation_type "modeled";
    String processing_method "Extreme Value Analysis (GEV via pyextremes)";
    String units "m";
  }
  return_value_observed {
    String ioos_category "Unknown";
  }
  lower_ci {
    Float64 _FillValue NaN;
    Float64 actual_range 1.9204067797241047, 10.444244480748086;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String comment "Lower bound of return value confidence interval.";
    String coordinates "id latitude longitude";
    String ioos_category "Statistics";
    String long_name "Lower confidence interval";
    String observation_type "modeled";
    String units "m";
  }
  upper_ci {
    Float64 _FillValue NaN;
    Float64 actual_range 2.0572653927795126, 11.943585133440966;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String comment "Upper bound of return value confidence interval.";
    String coordinates "id latitude longitude";
    String ioos_category "Statistics";
    String long_name "Upper confidence interval";
    String observation_type "modeled";
    String units "m";
  }
  return_period {
    Float64 _FillValue NaN;
    Float64 actual_range 1.0, 100.0;
    String ioos_category "Unknown";
    String long_name "Return Period";
    String units "1";
  }
  return_period_observed {
    String ioos_category "Unknown";
    String long_name "Return Period Observed";
  }
  id {
    String comment "Unique identifier for each location";
    String ioos_category "Identifier";
    String long_name "Id";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String comment "Return value estimates are based on the Generalized Extreme Value (GEV) distribution using the Block Maxima (BM) method. Fitted using pyextremes.";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String creator_name "Cecilio, Catarina";
    String creator_url "https://github.com/tommylees112/pyextremes";
    String date_created "2025-07-18";
    String history 
"Python, pyextremes library
2026-02-24T23:06:47Z (local files)
2026-02-24T23:06:47Z http://erddap.atlanticsense.com/erddap/tabledap/twl_extremes.html";
    String infoUrl "https://github.com/tommylees112/pyextremes";
    String institution "+ATLANTIC_CoLAB";
    String keywords "+atlantic, analysis, bound, colab, confidence, data, extreme, extremes, identifier, interval, lower, lower_ci, output, period, return, return_period, return_value, return_value_lower_bound, return_value_upper_bound, statistics, twl, upper, upper_ci, value";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String processing_method "pyextremes.fit() and get_return_value() methods";
    String references "https://github.com/tommylees112/pyextremes";
    String source "Python, pyextremes library";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Extreme Value Analysis output. twl_extremes. +ATLANTIC_CoLAB data from a local source.";
    String title "Extreme Value Analysis output (twl_extremes)";
  }
}

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