{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:36.399900", "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": "2019-Apr-18_to_2019-Apr-21_303.5_-3.5"}, "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": 2019040002128}, "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 18 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 21 2019"}, "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": 61644.98317762038}, "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.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": []}, "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": -3.5}, "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": 303.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 302.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 305.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.53, -3.47], [-57.18, -3.32], [-57.03, -2.97], [-56.5, -2.75], [-56.25, -2.85], [-56.0, -2.75], [-55.75, -2.85], [-55.68, -2.82], [-55.53, -2.47], [-55.0, -2.25], [-54.47, -2.47], [-54.32, -2.82], [-53.97, -2.97], [-53.75, -3.5], [-53.96, -4.0], [-53.75, -4.5], [-53.97, -5.03], [-54.32, -5.18], [-54.35, -5.25], [-54.25, -5.5], [-54.47, -6.03], [-55.0, -6.25], [-55.25, -6.15], [-55.5, -6.25], [-56.03, -6.03], [-56.18, -5.68], [-56.53, -5.53], [-56.68, -5.18], [-56.75, -5.15], [-57.0, -5.25], [-57.53, -5.03], [-57.75, -4.5], [-57.65, -4.25], [-57.75, -4.0], [-57.53, -3.47]]]]}, "2019-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.53, -3.47], [-57.18, -3.32], [-57.03, -2.97], [-56.5, -2.75], [-56.25, -2.85], [-56.0, -2.75], [-55.75, -2.85], [-55.68, -2.82], [-55.53, -2.47], [-55.0, -2.25], [-54.47, -2.47], [-54.32, -2.82], [-53.97, -2.97], [-53.75, -3.5], [-53.96, -4.0], [-53.75, -4.5], [-53.97, -5.03], [-54.32, -5.18], [-54.35, -5.25], [-54.25, -5.5], [-54.47, -6.03], [-55.0, -6.25], [-55.25, -6.15], [-55.5, -6.25], [-56.03, -6.03], [-56.18, -5.68], [-56.53, -5.53], [-56.68, -5.18], [-56.75, -5.15], [-57.0, -5.25], [-57.53, -5.03], [-57.75, -4.5], [-57.65, -4.25], [-57.75, -4.0], [-57.53, -3.47]]]]}, "2019-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.53, -3.47], [-57.18, -3.32], [-57.03, -2.97], [-56.5, -2.75], [-56.25, -2.85], [-56.0, -2.75], [-55.75, -2.85], [-55.68, -2.82], [-55.53, -2.47], [-55.0, -2.25], [-54.47, -2.47], [-54.32, -2.82], [-53.97, -2.97], [-53.75, -3.5], [-53.96, -4.0], [-53.75, -4.5], [-53.97, -5.03], [-54.32, -5.18], [-54.35, -5.25], [-54.25, -5.5], [-54.47, -6.03], [-55.0, -6.25], [-55.25, -6.15], [-55.5, -6.25], [-56.03, -6.03], [-56.18, -5.68], [-56.53, -5.53], [-56.68, -5.18], [-56.75, -5.15], [-57.0, -5.25], [-57.53, -5.03], [-57.75, -4.5], [-57.65, -4.25], [-57.75, -4.0], [-57.53, -3.47]]]]}, "2019-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.03, -4.03], [-57.25, -3.5], [-57.03, -2.97], [-56.5, -2.75], [-56.25, -2.85], [-56.0, -2.75], [-55.47, -2.97], [-55.25, -3.5], [-55.47, -4.03], [-56.0, -4.25], [-56.25, -4.15], [-56.5, -4.25], [-57.03, -4.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8421123800432042}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.333159100779118}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.8611127235734, 26.947794727738767, 26.59576777584016, 26.766895817279078]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.533250497214908, 27.52222381117275, 27.349089525467775, 26.780219729580097]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4203810512560693, 1.494537433515734, 1.1066167886823535, 1.112579389611085]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7030665156347027, 1.8421123800432042, 1.2923254369998176, 1.157169067396353]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8962086103839364, 1.9697736657960843, 1.45684445851378, 1.3990534232106389]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.295372245718972, 2.3664908712614214, 1.7957964017574395, 1.4497136718976102]}}