{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:53.152595", "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": "2020-Feb-03_to_2020-Feb-07_308.0_4.5"}, "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": 2020020001158}, "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": "February 03 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 07 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 52459.72464172814}, "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": ["Brazil", "French Guiana"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": ["North Atlantic Ocean"]}, "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": 4.5}, "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": 308.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 310.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.75, 3.5], [-54.65, 3.75], [-54.75, 4.0], [-54.53, 4.53], [-54.0, 4.75], [-53.47, 4.53], [-53.32, 4.18], [-52.97, 4.03], [-52.75, 3.5], [-52.97, 2.97], [-53.32, 2.82], [-53.35, 2.75], [-53.25, 2.5], [-53.47, 1.97], [-54.0, 1.75], [-54.53, 1.97], [-54.75, 2.5], [-54.65, 2.75], [-54.75, 3.0], [-54.65, 3.25], [-54.75, 3.5]]], [[[-52.53, 3.97], [-52.75, 4.5], [-52.53, 5.03], [-52.0, 5.25], [-51.47, 5.03], [-51.25, 4.5], [-51.47, 3.97], [-52.0, 3.75], [-52.53, 3.97]]]]}, "2020-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.65, 3.25], [-54.75, 3.5], [-54.65, 3.75], [-54.75, 4.0], [-54.53, 4.53], [-54.0, 4.75], [-53.47, 4.53], [-53.32, 4.18], [-53.0, 4.04], [-52.68, 4.18], [-52.65, 4.25], [-52.75, 4.5], [-52.53, 5.03], [-52.0, 5.25], [-51.47, 5.03], [-51.32, 4.68], [-50.97, 4.53], [-50.75, 4.0], [-50.97, 3.47], [-51.32, 3.32], [-51.47, 2.97], [-52.0, 2.75], [-52.25, 2.85], [-52.32, 2.82], [-52.47, 2.47], [-53.0, 2.25], [-53.3, 2.38], [-53.47, 1.97], [-54.0, 1.75], [-54.53, 1.97], [-54.75, 2.5], [-54.65, 2.75], [-54.75, 3.0], [-54.65, 3.25]]]]}, "2020-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.65, 3.25], [-54.75, 3.5], [-54.65, 3.75], [-54.75, 4.0], [-54.53, 4.53], [-54.0, 4.75], [-53.47, 4.53], [-53.32, 4.18], [-53.0, 4.04], [-52.68, 4.18], [-52.65, 4.25], [-52.75, 4.5], [-52.53, 5.03], [-52.0, 5.25], [-51.47, 5.03], [-51.32, 4.68], [-50.97, 4.53], [-50.82, 4.18], [-50.47, 4.03], [-50.32, 3.68], [-49.97, 3.53], [-49.82, 3.18], [-49.47, 3.03], [-49.25, 2.5], [-49.35, 2.25], [-49.25, 2.0], [-49.47, 1.47], [-50.0, 1.25], [-50.53, 1.47], [-50.68, 1.82], [-51.03, 1.97], [-51.18, 2.32], [-51.53, 2.47], [-51.7, 2.88], [-52.0, 2.75], [-52.25, 2.85], [-52.32, 2.82], [-52.47, 2.47], [-53.0, 2.25], [-53.3, 2.38], [-53.47, 1.97], [-54.0, 1.75], [-54.53, 1.97], [-54.75, 2.5], [-54.65, 2.75], [-54.75, 3.0], [-54.65, 3.25]]]]}, "2020-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.68, 4.18], [-52.65, 4.25], [-52.75, 4.5], [-52.53, 5.03], [-52.0, 5.25], 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anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.4958362577772277}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1150688833004858}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.19084274310677, 26.266858164766177, 26.511414020893653, 26.43561417370813, 26.814113011118593]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.457955795590067, 26.788369165235167, 26.951773100563116, 26.767892652107037, 27.161912466186664]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0739520025915112, 1.1856266501233728, 1.1866136219105803, 0.9895556055031657, 1.080849544214532]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": 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