{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:36.389540", "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-Feb-13_to_2025-Feb-17_325.0_-2.5"}, "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": 2025020001429}, "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": "February 13 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 17 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": 104923.80625243767}, "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", "Parna\u00edba Ridge"]}, "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": -2.5}, "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": 325.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "325.0\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": 325.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-37.25, -5.15], [-37.5, -5.25], [-38.03, -5.03], [-38.18, -4.68], [-38.53, -4.53], [-38.68, -4.18], [-39.03, -4.03], [-39.18, -3.68], [-39.53, -3.53], [-39.75, -3.0], [-39.53, -2.47], [-39.0, -2.25], [-38.75, -2.35], [-38.5, -2.25], [-38.25, -2.35], [-38.12, -2.3], [-38.25, -2.0], [-38.03, -1.47], [-37.5, -1.25], [-37.25, -1.35], [-37.0, -1.25], [-36.75, -1.35], [-36.5, -1.25], [-36.25, -1.35], [-36.0, -1.25], [-35.47, -1.47], [-35.32, -1.82], [-35.25, -1.85], [-35.0, -1.75], [-34.75, -1.85], [-34.5, -1.75], [-33.97, -1.97], [-33.75, -2.5], [-33.96, -3.0], [-33.75, -3.5], [-33.97, -4.03], [-34.5, -4.25], [-34.75, -4.15], [-35.0, -4.25], [-35.25, -4.15], [-35.5, -4.25], [-35.75, -4.15], [-36.0, -4.25], [-35.47, -4.47], [-35.25, -5.0], [-35.47, -5.53], [-36.0, -5.75], [-36.25, -5.65], [-36.5, -5.75], [-37.03, -5.53], [-37.18, -5.18], [-37.25, -5.15]], [[-36.25, -4.15], [-36.37, -4.2], [-36.32, -4.32], [-36.25, -4.35], [-36.0, -4.25], [-36.25, -4.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "Equatorial.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-36.5, -5.75], [-37.02999999999997, -5.53], [-37.25, -5.0], [-37.02999999999997, -4.47], [-36.5, -4.25], [-36.25, -4.35], [-36.0, -4.25], [-35.47000000000003, -4.47], [-35.25, -5.0], [-35.47000000000003, -5.53], [-36.0, -5.75], [-36.25, -5.65], [-36.5, -5.75]]]]}, "2025-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.52999999999997, -3.53], [-39.75, -3.0], [-39.52999999999997, -2.47], [-39.0, -2.25], [-38.75, -2.35], [-38.5, -2.25], [-38.25, -2.35], [-38.0, -2.25], [-37.75, -2.35], [-37.68000000000001, -2.32], [-37.52999999999997, -1.97], [-37.0, -1.75], [-36.47000000000003, -1.97], [-36.31999999999999, -2.32], [-36.25, -2.35], [-36.0, -2.25], [-35.75, -2.35], [-35.5, -2.25], [-35.25, -2.35], [-35.0, -2.25], 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[-38.25, -2.35], [-38.120000000000005, -2.3], [-38.25, -2.0], [-38.02999999999997, -1.47], [-37.5, -1.25], [-37.25, -1.35], [-37.0, -1.25], [-36.75, -1.35], [-36.5, -1.25], [-36.25, -1.35], [-36.0, -1.25], [-35.47000000000003, -1.47], [-35.31999999999999, -1.82], [-35.25, -1.85], [-35.0, -1.75], [-34.75, -1.85], [-34.5, -1.75], [-33.97000000000003, -1.97], [-33.75, -2.5], [-33.95999999999998, -3.0], [-33.75, -3.5], [-33.97000000000003, -4.03], [-34.5, -4.25], [-34.75, -4.15], [-35.0, -4.25], [-35.25, -4.15], [-35.5, -4.25], [-35.75, -4.15], [-36.0, -4.25], [-35.47000000000003, -4.47], [-35.25, -5.0], [-35.47000000000003, -5.53], [-36.0, -5.75], [-36.25, -5.65], [-36.5, -5.75], [-37.02999999999997, -5.53], [-37.18000000000001, -5.18], [-37.25, -5.15], [-37.5, -5.25], [-38.02999999999997, -5.03], [-38.18000000000001, -4.68], [-38.52999999999997, -4.53], [-38.68000000000001, -4.18], [-39.02999999999997, -4.03], [-39.18000000000001, -3.68], [-39.52999999999997, -3.53]], [[-36.25, -4.15], [-36.370000000000005, -4.2], [-36.31999999999999, -4.32], [-36.25, -4.35], [-36.0, -4.25], [-36.25, -4.15]]]]}, "2025-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.52999999999997, -3.53], [-39.75, -3.0], [-39.52999999999997, -2.47], [-39.0, -2.25], [-38.75, -2.35], [-38.5, -2.25], [-38.25, -2.35], [-38.120000000000005, -2.3], [-38.25, -2.0], [-38.02999999999997, -1.47], [-37.5, -1.25], [-37.25, -1.35], [-37.0, -1.25], [-36.75, -1.35], [-36.5, -1.25], [-36.25, -1.35], [-36.0, -1.25], [-35.47000000000003, -1.47], [-35.31999999999999, -1.82], [-35.25, -1.85], [-35.0, -1.75], [-34.75, -1.85], [-34.5, -1.75], [-33.97000000000003, -1.97], [-33.75, -2.5], [-33.95999999999998, -3.0], [-33.75, -3.5], [-33.97000000000003, -4.03], [-34.5, -4.25], [-34.75, -4.15], [-35.0, -4.25], [-35.25, -4.15], [-35.5, -4.25], [-35.75, -4.15], [-36.0, -4.25], [-36.25, -4.15], [-36.370000000000005, -4.2], [-36.25, -4.5], [-36.47000000000003, -5.03], [-37.0, -5.25], [-37.25, -5.15], 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"description": "Maximum t2m anomaly recorded over entire duration", "value": 1.5914612685050997}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1396121490361935}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.141182200113917, 27.572333984375007, 27.623122675278694, 27.559835052490257, 27.21396860193329]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.228869374593103, 28.202050781250023, 28.261660512288415, 27.8367693583171, 27.634577687581384]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8265388248285603, 1.0450757798862855, 1.1935244688327185, 1.2102247641543133, 1.017049184625225]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8734144758672642, 1.2781099984543403, 1.5510277834344492, 1.5914612685050997, 1.3956492447735513]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2067770096775958, 1.6866947184634389, 1.9861897201710528, 2.022933679931037, 1.8156386895964174]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2743921771392162, 2.040242573607959, 2.517843479998453, 2.913017390671172, 2.503374813219935]}}