{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:05.683395", "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-Nov-20_to_2024-Nov-23_321.5_-13.0"}, "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": 2024110001939}, "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": "November 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 23 2024"}, "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": 71419.94957955857}, "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": ["Atlantic Ocean", "Royal Charlotte Bank"]}, "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": -13.0}, "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": 321.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "321.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 321.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 322.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-39.18, -15.32], [-39.15, -15.25], [-39.25, -15.0], [-39.15, -14.75], [-39.25, -14.5], [-39.15, -14.25], [-39.25, -14.0], [-39.15, -13.75], [-39.25, -13.5], [-39.15, -13.25], [-39.25, -13.0], [-39.03, -12.47], [-38.5, -12.25], [-37.97, -12.47], [-37.75, -13.0], [-37.85, -13.25], [-37.82, -13.32], [-37.47, -13.47], [-37.25, -14.0], [-37.35, -14.25], [-37.32, -14.32], [-36.97, -14.47], [-36.75, -15.0], [-36.85, -15.25], [-36.75, -15.5], [-36.96, -16.0], [-36.75, -16.5], [-36.85, -16.75], [-36.75, -17.0], [-36.97, -17.53], [-37.32, -17.68], [-37.47, -18.03], [-38.0, -18.25], [-38.5, -18.04], [-39.0, -18.25], [-39.53, -18.03], [-39.75, -17.5], [-39.65, -17.25], [-39.75, -17.0], [-39.54, -16.5], [-39.75, -16.0], [-39.53, -15.47], [-39.18, -15.32]]]]}}, "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": {"2024-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.54000000000002, -16.5], [-39.75, -16.0], [-39.52999999999997, -15.47], [-39.18000000000001, -15.32], [-39.14999999999998, -15.25], [-39.25, -15.0], [-39.02999999999997, -14.47], [-38.5, -14.25], [-37.97000000000003, -14.47], [-37.81999999999999, -14.82], [-37.75, -14.85], [-37.5, -14.75], [-36.97000000000003, -14.97], [-36.75, -15.5], [-36.95999999999998, -16.0], [-36.75, -16.5], [-36.85000000000002, -16.75], [-36.75, -17.0], [-36.97000000000003, -17.53], [-37.31999999999999, -17.68], [-37.47000000000003, -18.03], [-38.0, -18.25], [-38.5, -18.04], [-39.0, -18.25], [-39.52999999999997, -18.03], [-39.75, -17.5], [-39.64999999999998, -17.25], [-39.75, -17.0], [-39.54000000000002, -16.5]]], [[[-38.5, -13.75], [-39.02999999999997, -13.53], [-39.25, -13.0], [-39.02999999999997, -12.47], [-38.5, -12.25], [-37.97000000000003, -12.47], [-37.75, -13.0], [-37.97000000000003, -13.53], [-38.5, -13.75]]]]}, "2024-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.75, -17.0], [-39.54000000000002, -16.5], [-39.75, -16.0], [-39.52999999999997, -15.47], [-39.18000000000001, -15.32], [-39.14999999999998, -15.25], [-39.25, -15.0], [-39.14999999999998, -14.75], [-39.25, -14.5], [-39.14999999999998, -14.25], [-39.25, -14.0], [-39.14999999999998, -13.75], [-39.25, -13.5], [-39.14999999999998, -13.25], [-39.25, -13.0], [-39.02999999999997, -12.47], [-38.5, -12.25], [-37.97000000000003, -12.47], [-37.75, -13.0], [-37.85000000000002, -13.25], [-37.81999999999999, -13.32], [-37.47000000000003, -13.47], [-37.25, -14.0], [-37.35000000000002, -14.25], [-37.31999999999999, -14.32], [-36.97000000000003, -14.47], [-36.75, -15.0], [-36.85000000000002, -15.25], [-36.75, -15.5], [-36.95999999999998, -16.0], [-36.75, -16.5], [-36.85000000000002, -16.75], [-36.75, -17.0], [-36.97000000000003, -17.53], [-37.31999999999999, -17.68], [-37.47000000000003, -18.03], [-38.0, -18.25], [-38.5, -18.04], [-39.0, -18.25], [-39.52999999999997, -18.03], [-39.75, -17.5], [-39.64999999999998, -17.25], [-39.75, -17.0]]]]}, "2024-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.75, -17.0], [-39.54000000000002, -16.5], [-39.75, -16.0], [-39.52999999999997, -15.47], [-39.18000000000001, -15.32], [-39.14999999999998, -15.25], [-39.25, -15.0], [-39.14999999999998, -14.75], [-39.25, -14.5], [-39.14999999999998, -14.25], [-39.25, -14.0], [-39.14999999999998, -13.75], [-39.25, -13.5], [-39.14999999999998, -13.25], [-39.25, -13.0], [-39.02999999999997, -12.47], [-38.5, -12.25], [-37.97000000000003, -12.47], [-37.75, -13.0], [-37.85000000000002, -13.25], [-37.81999999999999, -13.32], [-37.47000000000003, -13.47], [-37.25, -14.0], [-37.35000000000002, -14.25], [-37.31999999999999, -14.32], [-36.97000000000003, -14.47], [-36.75, -15.0], [-36.85000000000002, -15.25], [-36.75, -15.5], [-36.95999999999998, -16.0], [-36.75, -16.5], [-36.85000000000002, -16.75], [-36.75, -17.0], [-36.97000000000003, -17.53], [-37.31999999999999, -17.68], [-37.47000000000003, -18.03], [-38.0, -18.25], [-38.5, -18.04], [-39.0, -18.25], [-39.52999999999997, -18.03], [-39.75, -17.5], [-39.64999999999998, -17.25], [-39.75, -17.0]]]]}, "2024-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.25, -14.0], [-39.14999999999998, -13.75], [-39.25, -13.5], [-39.14999999999998, -13.25], [-39.25, -13.0], [-39.02999999999997, -12.47], [-38.5, -12.25], [-37.97000000000003, -12.47], [-37.75, -13.0], [-37.85000000000002, -13.25], [-37.81999999999999, -13.32], [-37.47000000000003, -13.47], [-37.25, -14.0], [-37.35000000000002, -14.25], [-37.31999999999999, -14.32], [-36.97000000000003, -14.47], [-36.75, -15.0], [-36.97000000000003, -15.53], [-37.5, -15.75], [-37.75, -15.65], [-38.0, -15.75], [-38.52999999999997, -15.53], [-38.68000000000001, -15.18], [-39.02999999999997, -15.03], [-39.25, -14.5], [-39.14999999999998, -14.25], [-39.25, -14.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3325514337072377}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9909661877511179}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.35299887563673, 26.449333021375935, 26.49455837673611, 26.725495910644497]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.611898040771507, 26.59889628092452, 26.767612711588583, 27.05584869384768]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9664745384982057, 0.9667343520229702, 1.029099961517936, 1.0013051282975454]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1403840364355347, 1.3266760384363465, 1.3325514337072377, 1.189633536103031]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3703807881052599, 1.4396538699887216, 1.578144314107094, 1.6876053964811473]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6349934539103987, 1.7123749455165818, 2.009200533064348, 1.931258302159673]}}