{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:09.086592", "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-Jun-23_to_2025-Jun-26_314.5_-1.5"}, "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": 2025060002630}, "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": "June 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 26 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": 58667.28800882525}, "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": -1.5}, "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": 314.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "314.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 313.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 316.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-46.25, -1.35], [-46.18, -1.32], [-46.03, -0.97], [-45.5, -0.75], [-44.97, -0.97], [-44.82, -1.32], [-44.47, -1.47], [-44.32, -1.82], [-44.0, -1.96], [-43.5, -1.75], [-42.97, -1.97], [-42.75, -2.5], [-42.85, -2.75], [-42.75, -3.0], [-42.97, -3.53], [-43.32, -3.68], [-43.47, -4.03], [-44.0, -4.25], [-44.25, -4.15], [-44.5, -4.25], [-45.03, -4.03], [-45.18, -3.68], [-45.25, -3.65], [-45.5, -3.75], [-45.75, -3.65], [-46.0, -3.75], [-46.53, -3.53], [-46.68, -3.18], [-47.03, -3.03], [-47.25, -2.5], [-47.15, -2.25], [-47.25, -2.0], [-47.03, -1.47], [-46.5, -1.25], [-46.25, -1.35]]]]}}, "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": {"2025-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.75, -2.5], [-45.620000000000005, -2.2], [-46.02999999999997, -2.03], [-46.25, -1.5], [-46.02999999999997, -0.97], [-45.5, -0.75], [-44.97000000000003, -0.97], [-44.75, -1.5], [-44.870000000000005, -1.8], [-44.75, -1.85], [-44.5, -1.75], [-44.0, -1.96], [-43.5, -1.75], [-42.97000000000003, -1.97], [-42.75, -2.5], [-42.97000000000003, -3.03], [-43.370000000000005, -3.2], [-43.25, -3.5], [-43.47000000000003, -4.03], [-44.0, -4.25], [-44.25, -4.15], [-44.5, -4.25], [-45.02999999999997, -4.03], [-45.18000000000001, -3.68], [-45.52999999999997, -3.53], [-45.75, -3.0], [-45.64999999999998, -2.75], [-45.75, -2.5]]]]}, "2025-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.25, -2.0], [-47.02999999999997, -1.47], [-46.5, -1.25], [-46.25, -1.35], [-46.18000000000001, -1.32], [-46.02999999999997, -0.97], [-45.5, -0.75], [-44.97000000000003, -0.97], [-44.81999999999999, -1.32], [-44.47000000000003, -1.47], [-44.31999999999999, -1.82], [-44.0, -1.96], [-43.5, -1.75], [-42.97000000000003, -1.97], [-42.75, -2.5], [-42.85000000000002, -2.75], [-42.75, -3.0], [-42.97000000000003, -3.53], [-43.31999999999999, -3.68], [-43.47000000000003, -4.03], [-44.0, -4.25], [-44.25, -4.15], [-44.5, -4.25], [-45.02999999999997, -4.03], [-45.18000000000001, -3.68], [-45.25, -3.65], [-45.5, -3.75], [-45.75, -3.65], [-46.0, -3.75], [-46.52999999999997, -3.53], [-46.68000000000001, -3.18], [-47.02999999999997, -3.03], [-47.25, -2.5], [-47.14999999999998, -2.25], [-47.25, -2.0]]]]}, "2025-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.25, -2.0], [-47.02999999999997, -1.47], [-46.5, -1.25], [-46.25, -1.35], [-46.18000000000001, -1.32], [-46.02999999999997, -0.97], [-45.5, -0.75], [-44.97000000000003, -0.97], [-44.81999999999999, -1.32], [-44.47000000000003, -1.47], [-44.31999999999999, -1.82], [-44.0, -1.96], [-43.5, -1.75], [-42.97000000000003, -1.97], [-42.75, -2.5], [-42.85000000000002, -2.75], [-42.75, -3.0], [-42.97000000000003, -3.53], [-43.31999999999999, -3.68], [-43.47000000000003, -4.03], [-44.0, -4.25], [-44.25, -4.15], [-44.5, -4.25], [-45.02999999999997, -4.03], [-45.18000000000001, -3.68], [-45.25, -3.65], [-45.5, -3.75], [-45.75, -3.65], [-46.0, -3.75], [-46.52999999999997, -3.53], [-46.68000000000001, -3.18], [-47.02999999999997, -3.03], [-47.25, -2.5], [-47.14999999999998, -2.25], [-47.25, -2.0]]]]}, "2025-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.25, -2.0], [-47.02999999999997, -1.47], [-46.5, -1.25], [-46.25, -1.35], [-46.18000000000001, -1.32], [-46.02999999999997, -0.97], [-45.5, -0.75], [-44.97000000000003, -0.97], [-44.81999999999999, -1.32], [-44.47000000000003, -1.47], [-44.25, -2.0], [-44.35000000000002, -2.25], [-44.31999999999999, -2.32], [-44.25, -2.35], [-44.0, -2.25], [-43.75, -2.35], [-43.5, -2.25], [-42.97000000000003, -2.47], [-42.75, -3.0], [-42.97000000000003, -3.53], [-43.31999999999999, -3.68], [-43.47000000000003, -4.03], [-44.0, -4.25], [-44.25, -4.15], [-44.5, -4.25], [-45.02999999999997, -4.03], [-45.18000000000001, -3.68], [-45.25, -3.65], [-45.5, -3.75], [-45.75, -3.65], [-46.0, -3.75], [-46.52999999999997, -3.53], [-46.68000000000001, -3.18], [-47.02999999999997, -3.03], [-47.25, -2.5], [-47.14999999999998, -2.25], [-47.25, -2.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.513631242531801}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0309093128275295}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.64461996895926, 27.483524643747444, 27.50979592841975, 27.212487119786886]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.310263570149743, 28.360837554931663, 28.625441487630212, 28.42717768351241]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8979615365968731, 1.0938081656976657, 1.1519888270008718, 0.880029633991559]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.16529291665546, 1.2742933718593008, 1.513631242531801, 1.2869745433865774]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.44949498680163, 1.8609756220854332, 2.0003620027082842, 1.4693399599939405]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6033488307875343, 2.3413235039580647, 2.532276878178826, 1.7527379018077869]}}