{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:22.666274", "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-Apr-25_to_2025-Apr-29_321.0_-17.0"}, "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": 2025040002345}, "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": "April 25 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 29 2025"}, "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": 146289.35100328532}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "S.Atlantic-Ocean", "S.E.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": ["South 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": -17.0}, "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": 321.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "321.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 320.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 326.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.53, -16.47], [-39.0, -16.25], [-38.47, -16.47], [-38.25, -17.0], [-38.46, -17.5], [-38.25, -18.0], [-38.47, -18.53], [-39.0, -18.75], [-39.53, -18.53], [-39.75, -18.0], [-39.54, -17.5], [-39.75, -17.0], [-39.53, -16.47]]]]}, "2025-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.65, -17.25], [-39.75, -17.0], [-39.53, -16.47], [-39.18, -16.32], [-39.03, -15.97], [-38.5, -15.75], [-37.97, -15.97], [-37.82, -16.32], [-37.75, -16.35], [-37.5, -16.25], [-37.25, -16.35], [-37.0, -16.25], [-36.75, -16.35], [-36.5, -16.25], [-35.97, -16.47], [-35.82, -16.82], [-35.75, -16.85], [-35.5, -16.75], [-34.97, -16.97], [-34.82, -17.32], [-34.75, -17.35], [-34.5, -17.25], [-33.97, -17.47], [-33.75, -18.0], [-33.85, -18.25], [-33.82, -18.32], [-33.47, -18.47], [-33.25, -19.0], [-33.35, -19.25], [-33.25, -19.5], [-33.35, -19.75], [-33.25, -20.0], [-33.35, -20.25], [-33.25, -20.5], [-33.47, -21.03], [-34.0, -21.25], [-34.25, -21.15], [-34.32, -21.18], [-34.47, -21.53], [-35.0, -21.75], [-35.25, -21.65], [-35.5, -21.75], [-35.75, -21.65], [-36.0, -21.75], [-36.53, -21.53], [-36.75, -21.0], [-36.65, -20.75], [-36.68, -20.68], [-37.03, -20.53], [-37.25, -20.0], [-37.12, -19.7], [-37.53, -19.53], [-37.75, -19.0], [-37.53, -18.47], [-37.0, -18.25], [-36.75, -18.35], [-36.68, -18.32], [-36.65, -18.25], [-36.75, -18.0], [-36.65, -17.75], [-36.68, -17.68], [-36.75, -17.65], [-37.0, -17.75], [-37.25, -17.65], [-37.5, -17.75], [-37.75, -17.65], [-38.0, -17.75], [-38.25, -17.65], [-38.32, -17.68], [-38.35, -17.75], [-38.25, -18.0], [-38.47, -18.53], [-39.0, -18.75], [-39.53, -18.53], [-39.75, -18.0], [-39.65, -17.75], [-39.75, -17.5], [-39.65, -17.25]]]]}, "2025-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.25, -17.0], [-40.03, -16.47], [-39.5, -16.25], [-39.25, -16.35], [-39.18, -16.32], [-39.03, -15.97], [-38.5, -15.75], [-37.97, -15.97], [-37.82, -16.32], [-37.75, -16.35], [-37.5, -16.25], [-37.25, -16.35], [-37.0, -16.25], [-36.75, -16.35], [-36.5, -16.25], [-35.97, -16.47], [-35.82, -16.82], [-35.75, -16.85], [-35.5, -16.75], [-34.97, -16.97], [-34.82, -17.32], [-34.75, -17.35], [-34.5, -17.25], [-33.97, -17.47], [-33.75, -18.0], [-33.85, -18.25], [-33.82, -18.32], [-33.47, -18.47], [-33.25, -19.0], [-33.35, -19.25], [-33.25, -19.5], [-33.35, -19.75], [-33.25, -20.0], [-33.35, -20.25], [-33.25, -20.5], [-33.47, -21.03], [-34.0, -21.25], [-34.25, -21.15], [-34.32, -21.18], [-34.47, -21.53], [-35.0, -21.75], [-35.25, -21.65], [-35.5, -21.75], [-35.75, -21.65], [-36.0, -21.75], [-36.53, -21.53], [-36.75, -21.0], [-36.65, -20.75], [-36.68, -20.68], [-37.03, -20.53], [-37.25, -20.0], [-37.12, -19.7], [-37.53, -19.53], [-37.75, -19.0], [-37.54, -18.5], [-37.75, -18.0], [-37.65, -17.75], [-37.68, -17.68], [-37.75, -17.65], [-38.0, -17.75], [-38.25, -17.65], [-38.32, -17.68], [-38.35, -17.75], [-38.25, -18.0], [-38.47, -18.53], [-39.0, -18.75], [-39.53, -18.53], [-39.75, -18.0], [-39.65, -17.75], [-39.68, -17.68], [-40.03, -17.53], [-40.25, -17.0]]]]}, "2025-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.25, -17.0], [-40.03, -16.47], [-39.5, -16.25], [-39.25, -16.35], [-39.18, -16.32], [-39.03, -15.97], [-38.5, -15.75], [-37.97, -15.97], [-37.82, -16.32], [-37.75, -16.35], [-37.5, -16.25], [-37.25, -16.35], [-37.0, -16.25], [-36.75, -16.35], [-36.5, -16.25], [-35.97, -16.47], [-35.82, -16.82], [-35.75, -16.85], [-35.5, -16.75], [-34.97, -16.97], [-34.82, -17.32], [-34.75, -17.35], [-34.5, -17.25], [-33.97, -17.47], [-33.75, -18.0], [-33.85, -18.25], [-33.82, -18.32], [-33.47, -18.47], [-33.25, -19.0], [-33.35, -19.25], [-33.25, -19.5], [-33.35, -19.75], [-33.25, -20.0], [-33.35, -20.25], [-33.25, -20.5], [-33.47, -21.03], [-34.0, -21.25], [-34.25, -21.15], [-34.32, -21.18], [-34.47, -21.53], [-35.0, -21.75], [-35.25, -21.65], [-35.5, -21.75], [-35.75, -21.65], [-36.0, -21.75], [-36.53, -21.53], [-36.75, -21.0], [-36.65, -20.75], [-36.68, -20.68], [-37.03, -20.53], [-37.25, -20.0], [-37.12, -19.7], [-37.53, -19.53], [-37.75, -19.0], [-37.54, -18.5], [-37.75, -18.0], [-37.65, -17.75], [-37.68, -17.68], [-37.75, -17.65], [-38.0, -17.75], [-38.25, -17.65], [-38.32, -17.68], [-38.35, -17.75], [-38.25, -18.0], [-38.47, -18.53], [-39.0, -18.75], [-39.53, -18.53], [-39.75, -18.0], [-39.65, -17.75], [-39.68, -17.68], [-40.03, -17.53], [-40.25, -17.0]]]]}, "2025-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.25, -17.0], [-40.03, -16.47], [-39.5, -16.25], [-39.25, -16.35], [-39.18, -16.32], [-39.03, -15.97], [-38.5, -15.75], [-37.97, -15.97], [-37.82, -16.32], [-37.75, -16.35], [-37.5, -16.25], [-37.25, -16.35], [-37.0, -16.25], [-36.75, -16.35], [-36.5, -16.25], [-35.97, -16.47], [-35.82, -16.82], [-35.75, -16.85], [-35.5, -16.75], [-34.97, -16.97], [-34.82, -17.32], [-34.75, -17.35], [-34.5, -17.25], [-33.97, -17.47], [-33.75, -18.0], [-33.85, -18.25], [-33.75, -18.5], [-33.97, -19.03], [-34.5, -19.25], [-35.03, -19.03], [-35.18, -18.68], [-35.25, -18.65], [-35.5, -18.75], [-35.75, -18.65], [-36.0, -18.75], [-36.25, -18.65], [-36.5, -18.75], [-36.75, -18.65], [-37.0, -18.75], [-37.53, -18.53], [-37.75, -18.0], [-37.65, -17.75], [-37.68, -17.68], [-37.75, -17.65], [-38.0, -17.75], [-38.25, -17.65], [-38.32, -17.68], [-38.35, -17.75], [-38.25, -18.0], [-38.47, -18.53], [-39.0, -18.75], [-39.53, -18.53], [-39.75, -18.0], [-39.65, -17.75], [-39.68, -17.68], [-40.03, -17.53], [-40.25, -17.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2690952651936414}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2662691984723107}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.6628026326498, 26.83356515389903, 27.03450424194341, 27.131889088948583, 27.412747349814822]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.76733551025393, 27.46449686686202, 27.411305999755882, 27.45359319051107, 28.05739873250326]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0479306270072186, 1.032869574295229, 1.2553734335658795, 1.3758291862514602, 1.5522905835800695]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1087539179084729, 1.594805268096934, 1.6259055386164505, 2.2690952651936414, 2.226202259455988]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4478231357209754, 1.5202779163620457, 1.8374624486974926, 1.9971220591536263, 2.2345006243327563]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5252587054294366, 2.1755416801760656, 2.387358738137601, 2.5558255124776523, 3.0168773618469933]}}