{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:01.084109", "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": "2025-Sep-21_to_2025-Sep-24_315.5_-11.5"}, "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": 2025090002297}, "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": "September 21 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 24 2025"}, "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": 81686.93252578471}, "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": -11.5}, "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": 315.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "315.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 317.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-45.0, -15.25], [-45.53, -15.03], [-45.75, -14.5], [-45.65, -14.25], [-45.75, -14.0], [-45.65, -13.75], [-45.75, -13.5], [-45.65, -13.25], [-45.68, -13.18], [-46.03, -13.03], [-46.25, -12.5], [-46.15, -12.25], [-46.18, -12.18], [-46.53, -12.03], [-46.75, -11.5], [-46.53, -10.97], [-46.18, -10.82], [-46.03, -10.47], [-45.68, -10.32], [-45.65, -10.25], [-45.75, -10.0], [-45.53, -9.47], [-45.0, -9.25], [-44.75, -9.35], [-44.5, -9.25], [-43.97, -9.47], [-43.8, -9.88], [-43.68, -9.82], [-43.53, -9.47], [-43.0, -9.25], [-42.47, -9.47], [-42.25, -10.0], [-42.47, -10.53], [-42.82, -10.68], [-42.85, -10.75], [-42.75, -11.0], [-42.85, -11.25], [-42.75, -11.5], [-42.97, -12.03], [-43.5, -12.25], [-43.75, -12.15], [-43.82, -12.18], [-43.96, -12.5], [-43.75, -13.0], [-43.85, -13.25], [-43.75, -13.5], [-43.85, -13.75], [-43.75, -14.0], [-43.97, -14.53], [-44.32, -14.68], [-44.47, -15.03], [-45.0, -15.25]]]]}}, "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": {"2025-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.25, -12.0], [-46.02999999999997, -11.47], [-45.5, -11.25], [-45.19999999999999, -11.38], [-45.02999999999997, -10.97], [-44.5, -10.75], [-43.97000000000003, -10.97], [-43.75, -11.5], [-43.97000000000003, -12.03], [-44.5, -12.25], [-44.80000000000001, -12.12], [-44.85000000000002, -12.25], [-44.81999999999999, -12.32], [-44.47000000000003, -12.47], [-44.25, -13.0], [-44.35000000000002, -13.25], [-44.25, -13.5], [-44.35000000000002, -13.75], [-44.25, -14.0], [-44.35000000000002, -14.25], [-44.25, -14.5], [-44.47000000000003, -15.03], [-45.0, -15.25], [-45.52999999999997, -15.03], [-45.75, -14.5], [-45.64999999999998, -14.25], [-45.75, -14.0], [-45.64999999999998, -13.75], [-45.75, -13.5], [-45.64999999999998, -13.25], [-45.68000000000001, -13.18], [-46.02999999999997, -13.03], [-46.25, -12.5], [-46.14999999999998, -12.25], [-46.25, -12.0]]]]}, 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2.773087269564803, 2.2875084445372647, 2.197510820698489]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.1673590618911476, 3.94791806159202, 2.9108165000117765, 2.836477766372809]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2374660220561993, 1.7705057179541792, 1.4432108499183693, 1.3659767811115733]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.275532247228806, 2.371216424383325, 1.851624929126646, 1.6926034805381234]}}