{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:22.927083", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2013-Dec-16_to_2013-Dec-19_255.0_41.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2013120002067}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "December 16 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 19 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 70608.18387378429}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "W.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 41.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 255.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "255.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 253.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 258.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.75, 41.5], [-106.53, 42.03], [-106.0, 42.25], [-105.75, 42.15], [-105.5, 42.25], [-105.25, 42.15], [-105.18, 42.18], [-105.03, 42.53], [-104.5, 42.75], [-103.97, 42.53], [-103.82, 42.18], [-103.75, 42.15], [-103.5, 42.25], [-102.97, 42.03], [-102.82, 41.68], [-102.47, 41.53], [-102.32, 41.18], [-101.97, 41.03], [-101.82, 40.68], [-101.47, 40.53], [-101.25, 40.0], [-101.47, 39.47], [-102.0, 39.25], [-102.25, 39.35], [-102.5, 39.25], [-102.75, 39.35], [-103.0, 39.25], [-103.25, 39.35], [-103.5, 39.25], [-103.75, 39.35], [-103.82, 39.32], [-103.87, 39.2], [-103.47, 39.03], [-103.25, 38.5], [-103.35, 38.25], [-103.25, 38.0], [-103.47, 37.47], [-104.0, 37.25], [-104.53, 37.47], [-104.75, 38.0], [-104.65, 38.25], [-104.75, 38.5], [-104.62, 38.8], [-105.03, 38.97], [-105.25, 39.5], [-105.15, 39.75], [-105.25, 40.0], [-105.15, 40.25], [-105.18, 40.32], [-105.25, 40.35], [-105.5, 40.25], [-106.03, 40.47], [-106.18, 40.82], [-106.53, 40.97], [-106.75, 41.5]]]]}, "2013-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.75, 41.5], [-106.53, 42.03], [-106.0, 42.25], [-105.75, 42.15], [-105.5, 42.25], [-105.25, 42.15], [-105.18, 42.18], [-105.03, 42.53], [-104.5, 42.75], [-103.97, 42.53], [-103.82, 42.18], [-103.75, 42.15], [-103.5, 42.25], [-102.97, 42.03], [-102.82, 41.68], [-102.47, 41.53], [-102.32, 41.18], [-101.97, 41.03], [-101.82, 40.68], [-101.47, 40.53], [-101.25, 40.0], [-101.47, 39.47], [-102.0, 39.25], [-102.25, 39.35], [-102.5, 39.25], [-102.75, 39.35], [-103.0, 39.25], [-103.25, 39.35], [-103.37, 39.3], [-103.32, 39.18], [-102.97, 39.03], [-102.75, 38.5], [-102.97, 37.97], [-103.32, 37.82], [-103.47, 37.47], [-104.0, 37.25], [-104.53, 37.47], [-104.75, 38.0], [-104.65, 38.25], [-104.68, 38.32], [-105.03, 38.47], [-105.25, 39.0], [-105.15, 39.25], [-105.25, 39.5], [-105.15, 39.75], [-105.25, 40.0], [-105.15, 40.25], [-105.18, 40.32], [-105.25, 40.35], [-105.5, 40.25], [-106.03, 40.47], [-106.18, 40.82], [-106.53, 40.97], [-106.75, 41.5]]]]}, "2013-12-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.75, 41.5], [-106.53, 42.03], [-106.0, 42.25], [-105.75, 42.15], [-105.5, 42.25], [-105.25, 42.15], [-105.18, 42.18], [-105.03, 42.53], [-104.5, 42.75], [-103.97, 42.53], [-103.82, 42.18], [-103.75, 42.15], [-103.5, 42.25], [-102.97, 42.03], [-102.82, 41.68], [-102.47, 41.53], [-102.32, 41.18], [-101.97, 41.03], [-101.82, 40.68], [-101.47, 40.53], [-101.25, 40.0], [-101.47, 39.47], [-102.0, 39.25], [-102.25, 39.35], [-102.5, 39.25], [-102.75, 39.35], [-103.0, 39.25], [-103.25, 39.35], [-103.37, 39.3], [-103.32, 39.18], [-102.97, 39.03], [-102.75, 38.5], [-102.97, 37.97], [-103.32, 37.82], [-103.47, 37.47], [-104.0, 37.25], [-104.53, 37.47], [-104.75, 38.0], [-104.65, 38.25], [-104.68, 38.32], [-105.03, 38.47], [-105.25, 39.0], [-105.15, 39.25], [-105.25, 39.5], [-105.15, 39.75], [-105.25, 40.0], [-105.15, 40.25], [-105.18, 40.32], [-105.25, 40.35], [-105.5, 40.25], [-106.03, 40.47], [-106.18, 40.82], [-106.53, 40.97], [-106.75, 41.5]]]]}, "2013-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.53, 40.97], [-106.75, 41.5], [-106.53, 42.03], [-106.0, 42.25], [-105.5, 42.04], [-105.0, 42.25], [-104.47, 42.03], [-104.25, 41.5], [-104.35, 41.25], [-104.32, 41.18], [-103.97, 41.03], [-103.82, 40.68], [-103.75, 40.65], [-103.5, 40.75], [-102.97, 40.53], [-102.75, 40.0], [-102.97, 39.47], [-103.37, 39.3], [-103.32, 39.18], [-102.97, 39.03], [-102.75, 38.5], [-102.97, 37.97], [-103.32, 37.82], [-103.47, 37.47], [-104.0, 37.25], [-104.53, 37.47], [-104.75, 38.0], [-104.65, 38.25], [-104.68, 38.32], [-105.03, 38.47], [-105.25, 39.0], [-105.15, 39.25], [-105.25, 39.5], [-105.15, 39.75], [-105.25, 40.0], [-105.15, 40.25], [-105.18, 40.32], [-105.53, 40.47], [-105.7, 40.88], [-106.0, 40.75], [-106.53, 40.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.823537773375108}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.757933047984877}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.880829922403677, 4.66221101969569, 7.405111245291437, 5.230325432404925]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.69522158630059, 6.8217785179706425, 11.528666163970627, 9.152771619140196]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.358199856411172, 6.527564297283842, 9.452409668627771, 7.517129976772144]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.758215817844814, 8.173599823728694, 12.823537773375108, 9.125241622278963]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4995897167289014, 1.330258421480796, 1.8622345850097943, 1.506411797280922]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9235807523162347, 1.5847143668145907, 2.235684025282995, 1.9783204854998422]}}