{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:39.247792", "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-Jul-16_to_2025-Jul-21_299.0_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": 2025070002293}, "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": "July 16 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 137583.24021886804}, "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": ["Martinique"]}, "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", "Caribbean Sea"]}, "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": 299.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-59.85, 13.25], [-59.75, 13.0], [-59.97, 12.47], [-60.5, 12.25], [-60.75, 12.35], [-61.0, 12.25], [-61.25, 12.35], [-61.5, 12.25], [-61.75, 12.35], [-61.82, 12.32], [-61.97, 11.97], [-62.5, 11.75], [-63.03, 11.97], [-63.25, 12.5], [-63.15, 12.75], [-63.18, 12.82], [-63.53, 12.97], [-63.68, 13.32], [-63.75, 13.35], [-64.0, 13.25], [-64.53, 13.47], [-64.75, 14.0], [-64.65, 14.25], [-64.75, 14.5], [-64.65, 14.75], [-64.75, 15.0], [-64.53, 15.53], [-64.0, 15.75], [-63.75, 15.65], [-63.62, 15.7], [-63.75, 16.0], [-63.53, 16.53], [-63.0, 16.75], [-62.75, 16.65], [-62.5, 16.75], [-62.25, 16.65], [-62.0, 16.75], [-61.5, 16.54], [-61.18, 16.68], [-61.03, 17.03], [-60.5, 17.25], [-60.25, 17.15], [-60.0, 17.25], [-59.47, 17.03], [-59.32, 16.68], [-58.97, 16.53], [-58.75, 16.0], [-58.87, 15.7], [-58.75, 15.65], [-58.5, 15.75], [-57.97, 15.53], [-57.75, 15.0], [-57.97, 14.47], [-58.5, 14.25], [-58.75, 14.35], [-58.82, 14.32], [-58.97, 13.97], [-59.5, 13.75], [-59.75, 13.85], [-59.87, 13.8], [-59.75, 13.5], [-59.85, 13.25]], [[-59.75, 15.15], [-59.68, 15.18], [-59.62, 15.3], [-59.75, 15.35], [-60.0, 15.25], [-59.75, 15.15]], [[-60.25, 15.35], [-60.5, 15.25], [-60.25, 15.15], [-60.0, 15.25], [-60.25, 15.35]], [[-60.75, 15.35], [-60.82, 15.32], [-60.85, 15.25], [-60.82, 15.18], [-60.75, 15.15], [-60.5, 15.25], [-60.75, 15.35]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "N.South-America", "N.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, 14.5], [-64.64999999999998, 14.75], [-64.75, 15.0], [-64.52999999999997, 15.53], [-64.0, 15.75], [-63.75, 15.65], [-63.620000000000005, 15.7], [-63.75, 16.0], [-63.52999999999997, 16.53], [-63.0, 16.75], [-62.75, 16.65], [-62.5, 16.75], [-62.25, 16.65], [-62.0, 16.75], [-61.5, 16.54], [-61.18000000000001, 16.68], [-61.02999999999997, 17.03], [-60.5, 17.25], [-60.25, 17.15], [-60.0, 17.25], [-59.47000000000003, 17.03], [-59.31999999999999, 16.68], [-58.97000000000003, 16.53], [-58.75, 16.0], [-58.870000000000005, 15.7], [-58.75, 15.65], [-58.5, 15.75], [-57.97000000000003, 15.53], [-57.75, 15.0], [-57.97000000000003, 14.47], [-58.5, 14.25], [-58.75, 14.35], [-58.81999999999999, 14.32], [-58.97000000000003, 13.97], [-59.5, 13.75], [-59.75, 13.85], [-59.870000000000005, 13.8], [-59.75, 13.5], [-59.97000000000003, 12.97], [-60.5, 12.75], [-61.02999999999997, 12.97], [-61.19999999999999, 13.38], [-61.5, 13.25], [-61.75, 13.35], [-62.0, 13.25], [-62.52999999999997, 13.47], [-62.68000000000001, 13.82], [-62.75, 13.85], [-62.81999999999999, 13.82], [-62.97000000000003, 13.47], [-63.5, 13.25], [-63.75, 13.35], [-64.0, 13.25], [-64.52999999999997, 13.47], [-64.75, 14.0], [-64.64999999999998, 14.25], [-64.75, 14.5]], [[-59.68000000000001, 15.18], [-59.620000000000005, 15.3], [-59.75, 15.35], [-60.0, 15.25], [-59.75, 15.15], [-59.68000000000001, 15.18]], [[-60.25, 15.35], [-60.5, 15.25], [-60.25, 15.15], [-60.0, 15.25], [-60.25, 15.35]], [[-60.75, 15.35], [-60.870000000000005, 15.3], [-60.81999999999999, 15.18], [-60.75, 15.15], [-60.5, 15.25], [-60.75, 15.35]]]]}, "2025-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, 14.5], [-64.64999999999998, 14.75], [-64.75, 15.0], [-64.52999999999997, 15.53], [-64.0, 15.75], [-63.75, 15.65], [-63.620000000000005, 15.7], [-63.75, 16.0], [-63.52999999999997, 16.53], [-63.0, 16.75], [-62.75, 16.65], [-62.5, 16.75], [-62.25, 16.65], [-62.0, 16.75], [-61.5, 16.54], [-61.18000000000001, 16.68], [-61.02999999999997, 17.03], [-60.5, 17.25], [-60.25, 17.15], [-60.0, 17.25], [-59.47000000000003, 17.03], [-59.31999999999999, 16.68], [-58.97000000000003, 16.53], [-58.75, 16.0], [-58.870000000000005, 15.7], [-58.75, 15.65], [-58.5, 15.75], [-57.97000000000003, 15.53], [-57.75, 15.0], [-57.97000000000003, 14.47], [-58.5, 14.25], [-58.75, 14.35], [-58.81999999999999, 14.32], [-58.97000000000003, 13.97], [-59.5, 13.75], [-59.75, 13.85], [-59.870000000000005, 13.8], [-59.75, 13.5], [-59.85000000000002, 13.25], [-59.75, 13.0], [-59.97000000000003, 12.47], [-60.5, 12.25], [-60.75, 12.35], [-61.0, 12.25], [-61.25, 12.35], [-61.5, 12.25], [-61.75, 12.35], [-61.81999999999999, 12.32], [-61.97000000000003, 11.97], [-62.5, 11.75], [-63.02999999999997, 11.97], [-63.25, 12.5], [-63.14999999999998, 12.75], [-63.25, 13.0], [-63.06999999999999, 13.43], [-63.5, 13.25], [-63.75, 13.35], [-64.0, 13.25], [-64.52999999999997, 13.47], [-64.75, 14.0], [-64.64999999999998, 14.25], [-64.75, 14.5]], [[-59.68000000000001, 15.18], [-59.620000000000005, 15.3], [-59.75, 15.35], [-60.0, 15.25], [-59.75, 15.15], [-59.68000000000001, 15.18]], [[-60.25, 15.35], [-60.5, 15.25], [-60.25, 15.15], [-60.0, 15.25], [-60.25, 15.35]], [[-60.75, 15.35], [-60.81999999999999, 15.32], [-60.85000000000002, 15.25], [-60.81999999999999, 15.18], [-60.75, 15.15], [-60.5, 15.25], [-60.75, 15.35]], [[-62.68000000000001, 13.82], [-62.75, 13.85], [-62.81999999999999, 13.82], [-62.93000000000001, 13.57], [-62.620000000000005, 13.7], [-62.68000000000001, 13.82]]]]}, "2025-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, 14.5], [-64.64999999999998, 14.75], [-64.75, 15.0], [-64.52999999999997, 15.53], [-64.0, 15.75], [-63.75, 15.65], [-63.620000000000005, 15.7], [-63.75, 16.0], [-63.52999999999997, 16.53], [-63.0, 16.75], [-62.75, 16.65], [-62.5, 16.75], [-62.25, 16.65], [-62.0, 16.75], [-61.5, 16.54], [-61.18000000000001, 16.68], [-61.02999999999997, 17.03], [-60.5, 17.25], [-60.25, 17.15], [-60.0, 17.25], [-59.47000000000003, 17.03], [-59.31999999999999, 16.68], [-58.97000000000003, 16.53], [-58.75, 16.0], [-58.870000000000005, 15.7], [-58.75, 15.65], [-58.5, 15.75], [-57.97000000000003, 15.53], [-57.75, 15.0], [-57.97000000000003, 14.47], [-58.5, 14.25], [-58.75, 14.35], [-58.81999999999999, 14.32], [-58.97000000000003, 13.97], [-59.5, 13.75], [-59.75, 13.85], [-59.870000000000005, 13.8], [-59.75, 13.5], [-59.85000000000002, 13.25], [-59.75, 13.0], [-59.97000000000003, 12.47], [-60.5, 12.25], [-60.75, 12.35], [-61.0, 12.25], [-61.25, 12.35], [-61.5, 12.25], [-61.75, 12.35], [-61.81999999999999, 12.32], [-61.97000000000003, 11.97], [-62.5, 11.75], [-63.02999999999997, 11.97], [-63.25, 12.5], [-63.14999999999998, 12.75], [-63.25, 13.0], [-63.06999999999999, 13.43], [-63.5, 13.25], [-63.75, 13.35], [-64.0, 13.25], [-64.52999999999997, 13.47], [-64.75, 14.0], [-64.64999999999998, 14.25], [-64.75, 14.5]], [[-59.68000000000001, 15.18], [-59.620000000000005, 15.3], [-59.75, 15.35], [-60.0, 15.25], [-59.75, 15.15], [-59.68000000000001, 15.18]], [[-60.25, 15.35], [-60.5, 15.25], [-60.25, 15.15], [-60.0, 15.25], [-60.25, 15.35]], [[-60.75, 15.35], [-60.81999999999999, 15.32], [-60.85000000000002, 15.25], [-60.81999999999999, 15.18], [-60.75, 15.15], [-60.5, 15.25], [-60.75, 15.35]], [[-62.68000000000001, 13.82], [-62.75, 13.85], [-62.81999999999999, 13.82], [-62.93000000000001, 13.57], [-62.620000000000005, 13.7], [-62.68000000000001, 13.82]]]]}, "2025-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.75, 13.5], [-63.52999999999997, 14.03], [-63.0, 14.25], [-62.75, 14.15], [-62.5, 14.25], [-62.25, 14.15], [-62.0, 14.25], [-61.75, 14.15], [-61.5, 14.25], [-61.25, 14.15], [-61.0, 14.25], [-60.75, 14.15], [-60.5, 14.25], [-59.97000000000003, 14.03], [-59.75, 13.5], [-59.85000000000002, 13.25], [-59.75, 13.0], [-59.97000000000003, 12.47], [-60.5, 12.25], [-60.75, 12.35], [-61.0, 12.25], [-61.25, 12.35], [-61.5, 12.25], [-61.75, 12.35], [-61.81999999999999, 12.32], [-61.97000000000003, 11.97], [-62.5, 11.75], [-63.02999999999997, 11.97], [-63.25, 12.5], [-63.14999999999998, 12.75], [-63.18000000000001, 12.82], [-63.52999999999997, 12.97], [-63.75, 13.5]]], [[[-63.75, 16.0], [-63.52999999999997, 16.53], [-63.0, 16.75], [-62.75, 16.65], [-62.5, 16.75], [-61.97000000000003, 16.53], [-61.81999999999999, 16.18], [-61.75, 16.15], [-61.5, 16.25], [-60.97000000000003, 16.03], [-60.75, 15.5], [-60.97000000000003, 14.97], [-61.5, 14.75], [-61.75, 14.85], [-62.0, 14.75], [-62.25, 14.85], [-62.5, 14.75], [-63.02999999999997, 14.97], [-63.18000000000001, 15.32], [-63.52999999999997, 15.47], [-63.75, 16.0]]]]}, "2025-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.75, 13.5], [-63.52999999999997, 14.03], [-63.0, 14.25], [-62.75, 14.15], [-62.5, 14.25], [-62.25, 14.15], [-62.0, 14.25], [-61.75, 14.15], [-61.5, 14.25], [-61.25, 14.15], [-61.0, 14.25], [-60.75, 14.15], [-60.5, 14.25], [-59.97000000000003, 14.03], [-59.75, 13.5], [-59.85000000000002, 13.25], [-59.75, 13.0], [-59.97000000000003, 12.47], [-60.5, 12.25], [-60.75, 12.35], [-61.0, 12.25], [-61.25, 12.35], [-61.5, 12.25], [-61.75, 12.35], [-62.0, 12.25], [-62.25, 12.35], [-62.5, 12.25], [-63.02999999999997, 12.47], [-63.18000000000001, 12.82], [-63.52999999999997, 12.97], [-63.75, 13.5]]], [[[-63.02999999999997, 14.97], [-63.25, 15.5], [-63.02999999999997, 16.03], [-62.5, 16.25], [-62.25, 16.15], [-62.0, 16.25], [-61.75, 16.15], [-61.5, 16.25], [-60.97000000000003, 16.03], [-60.75, 15.5], [-60.97000000000003, 14.97], [-61.5, 14.75], [-61.75, 14.85], [-62.0, 14.75], [-62.25, 14.85], [-62.5, 14.75], [-63.02999999999997, 14.97]]]]}, "2025-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.75, 13.5], [-63.52999999999997, 14.03], [-63.0, 14.25], [-62.75, 14.15], [-62.5, 14.25], [-62.25, 14.15], [-62.0, 14.25], [-61.75, 14.15], [-61.5, 14.25], [-61.25, 14.15], [-61.0, 14.25], [-60.75, 14.15], [-60.5, 14.25], [-59.97000000000003, 14.03], [-59.75, 13.5], [-59.85000000000002, 13.25], [-59.75, 13.0], [-59.97000000000003, 12.47], [-60.5, 12.25], [-60.75, 12.35], [-61.0, 12.25], [-61.25, 12.35], [-61.5, 12.25], [-61.75, 12.35], [-62.0, 12.25], [-62.25, 12.35], [-62.5, 12.25], [-63.02999999999997, 12.47], [-63.18000000000001, 12.82], [-63.52999999999997, 12.97], [-63.75, 13.5]]], [[[-62.52999999999997, 14.97], [-62.75, 15.5], [-62.52999999999997, 16.03], [-62.0, 16.25], [-61.75, 16.15], [-61.5, 16.25], [-60.97000000000003, 16.03], [-60.75, 15.5], [-60.97000000000003, 14.97], [-61.5, 14.75], [-61.75, 14.85], [-62.0, 14.75], [-62.52999999999997, 14.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3597735467419625}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.7957444939864438}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.73979803347123, 27.950957420783254, 27.85055942690468, 27.597792262657094, 27.81429007393973, 27.676079833201925]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.03589274088546, 28.279028828938806, 28.19652455647787, 27.820280965169275, 28.006300862630212, 27.8411689758301]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.6526767723888875, 0.9110925847635732, 0.8337333970765671, 0.6612550274679667, 0.8895535254016319, 0.7611660537372918]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8631659853247697, 1.3597735467419625, 1.214475965366944, 0.9232019054964553, 1.0793428904162283, 0.856566449070101]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5462570577333286, 2.161546478023627, 1.9568697111877684, 1.5486119942517789, 2.02867394532645, 1.7404850764812696]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.989654415459809, 2.965422335353011, 2.727910272303748, 2.0724875187261853, 2.42773180344696, 1.9536592673859685]}}