{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:19.501601", "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": "2024-Oct-15_to_2024-Oct-20_316.5_-7.0"}, "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": 2024100000311}, "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": "October 15 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 20 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 135386.5978830775}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -7.0}, "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": 316.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "316.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 315.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 319.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-43.75, -5.5], [-43.65, -5.25], [-43.75, -5.0], [-43.65, -4.75], [-43.68, -4.68], [-44.03, -4.53], [-44.18, -4.18], [-44.53, -4.03], [-44.75, -3.5], [-44.53, -2.97], [-44.18, -2.82], [-44.03, -2.47], [-43.5, -2.25], [-43.25, -2.35], [-43.0, -2.25], [-42.47, -2.47], [-42.32, -2.82], [-42.25, -2.85], [-42.18, -2.82], [-42.03, -2.47], [-41.5, -2.25], [-40.97, -2.47], [-40.82, -2.82], [-40.47, -2.97], [-40.32, -3.32], [-39.97, -3.47], [-39.75, -4.0], [-39.85, -4.25], [-39.75, -4.5], [-39.97, -5.03], [-40.5, -5.25], [-40.75, -5.15], [-41.0, -5.25], [-41.3, -5.12], [-41.35, -5.25], [-41.25, -5.5], [-41.46, -6.0], [-41.25, -6.5], [-41.35, -6.75], [-41.25, -7.0], [-41.35, -7.25], [-41.25, -7.5], [-41.47, -8.03], [-42.0, -8.25], [-42.25, -8.15], [-42.5, -8.25], [-42.75, -8.15], [-42.82, -8.18], [-42.97, -8.53], [-43.5, -8.75], [-44.03, -8.53], [-44.18, -8.18], [-44.53, -8.03], [-44.68, -7.68], [-45.03, -7.53], [-45.25, -7.0], [-45.03, -6.47], [-44.5, -6.25], [-44.25, -6.35], [-44.18, -6.32], [-44.03, -5.97], [-43.62, -5.8], [-43.75, -5.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.02999999999997, -3.53], [-44.25, -3.0], [-44.02999999999997, -2.47], [-43.5, -2.25], [-43.25, -2.35], [-43.0, -2.25], [-42.47000000000003, -2.47], [-42.31999999999999, -2.82], [-42.25, -2.85], [-42.18000000000001, -2.82], [-42.02999999999997, -2.47], [-41.5, -2.25], [-40.97000000000003, -2.47], [-40.75, -3.0], [-40.97000000000003, -3.53], [-41.31999999999999, -3.68], [-41.35000000000002, -3.75], [-41.25, -4.0], [-41.47000000000003, -4.53], [-42.0, -4.75], [-42.5, -4.54], [-43.0, -4.75], [-43.52999999999997, -4.53], [-43.75, -4.0], [-43.64999999999998, -3.75], [-43.68000000000001, -3.68], [-44.02999999999997, -3.53]]]]}, "2024-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.52999999999997, 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28.365484202991865, 26.76735019105854, 27.763976033528706, 27.74254124959316]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.614517466227255, 26.41876118977865, 26.26295623779299, 22.796567535400413, 25.95051981608077, 27.354072825113974]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9744750621117717, -1.2558699758253307, -1.825262075905649, -3.3701119005848494, -2.8399193653811863, -2.041315675600515]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2010836034434647, -1.8494273710858238, -3.372636737542166, -7.16960461982984, -3.848358827216657, -2.190086714652068]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5068086607968771, -1.5412101295529614, -1.6228381659973883, -2.6242350033449573, -1.7947557504570706, -1.2716271792576843]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.725650113476732, -1.818931666473432, -2.121995713163056, -4.422171921530848, -2.317281378963696, -1.3178387228925543]}}