{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:50:49.026309", "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": "2023-Jan-23_to_2023-Jan-25_296.5_20.0"}, "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": 2023010002723}, "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": "January 23 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 25 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 90613.48165748506}, "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": ["Sint Maarten (Dutch part)"]}, "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": 20.0}, "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": 296.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-66.53, 20.03], [-66.0, 20.25], [-65.75, 20.15], [-65.5, 20.25], [-65.25, 20.15], [-65.18, 20.18], [-65.03, 20.53], [-64.5, 20.75], [-64.25, 20.65], [-64.0, 20.75], [-63.75, 20.65], [-63.5, 20.75], [-63.25, 20.65], [-63.0, 20.75], [-62.75, 20.65], [-62.5, 20.75], [-61.97, 20.53], [-61.82, 20.18], [-61.47, 20.03], [-61.25, 19.5], [-61.47, 18.97], [-61.82, 18.82], [-61.87, 18.7], [-61.75, 18.65], [-61.5, 18.75], [-60.97, 18.53], [-60.75, 18.0], [-60.97, 17.47], [-61.5, 17.25], [-61.75, 17.35], [-62.0, 17.25], [-62.25, 17.35], [-62.5, 17.25], [-62.75, 17.35], [-63.0, 17.25], [-63.25, 17.35], [-63.5, 17.25], [-63.75, 17.35], [-64.0, 17.25], [-64.25, 17.35], [-64.5, 17.25], [-65.03, 17.47], [-65.18, 17.82], [-65.25, 17.85], [-65.5, 17.75], [-66.03, 17.97], [-66.25, 18.5], [-66.12, 18.8], [-66.53, 18.97], [-66.75, 19.5], [-66.53, 20.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "N.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.52999999999997, 18.97], [-66.75, 19.5], [-66.52999999999997, 20.03], [-66.0, 20.25], [-65.75, 20.15], [-65.5, 20.25], [-65.25, 20.15], [-65.18, 20.18], [-65.02999999999997, 20.53], [-64.5, 20.75], [-64.25, 20.65], [-64.0, 20.75], [-63.75, 20.65], [-63.5, 20.75], [-63.25, 20.65], [-63.0, 20.75], [-62.75, 20.65], [-62.5, 20.75], [-61.97000000000003, 20.53], [-61.81999999999999, 20.18], [-61.47000000000003, 20.03], [-61.25, 19.5], [-61.47000000000003, 18.97], [-61.81999999999999, 18.82], [-61.870000000000005, 18.7], [-61.75, 18.65], [-61.5, 18.75], [-60.97000000000003, 18.53], [-60.75, 18.0], [-60.97000000000003, 17.47], [-61.5, 17.25], [-61.75, 17.35], [-62.0, 17.25], [-62.25, 17.35], [-62.5, 17.25], [-62.75, 17.35], [-63.0, 17.25], [-63.25, 17.35], [-63.5, 17.25], [-63.75, 17.35], [-64.0, 17.25], [-64.25, 17.35], [-64.5, 17.25], [-65.02999999999997, 17.47], [-65.18, 17.82], [-65.25, 17.85], [-65.5, 17.75], [-66.02999999999997, 17.97], [-66.25, 18.5], [-66.12, 18.8], [-66.52999999999997, 18.97]]]]}, "2023-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.52999999999997, 18.97], [-66.75, 19.5], [-66.52999999999997, 20.03], [-66.0, 20.25], [-65.75, 20.15], [-65.5, 20.25], [-65.25, 20.15], [-65.18, 20.18], [-65.02999999999997, 20.53], [-64.5, 20.75], [-64.25, 20.65], [-64.0, 20.75], [-63.75, 20.65], [-63.5, 20.75], [-63.25, 20.65], [-63.0, 20.75], [-62.75, 20.65], [-62.5, 20.75], [-61.97000000000003, 20.53], [-61.81999999999999, 20.18], [-61.47000000000003, 20.03], [-61.25, 19.5], [-61.47000000000003, 18.97], [-61.81999999999999, 18.82], [-61.870000000000005, 18.7], [-61.75, 18.65], [-61.5, 18.75], [-60.97000000000003, 18.53], [-60.75, 18.0], [-60.97000000000003, 17.47], [-61.5, 17.25], [-61.75, 17.35], [-62.0, 17.25], [-62.25, 17.35], [-62.5, 17.25], [-62.75, 17.35], [-63.0, 17.25], [-63.25, 17.35], [-63.5, 17.25], [-63.75, 17.35], [-64.0, 17.25], [-64.25, 17.35], [-64.5, 17.25], [-65.02999999999997, 17.47], [-65.18, 17.82], [-65.25, 17.85], [-65.5, 17.75], [-66.02999999999997, 17.97], [-66.25, 18.5], [-66.12, 18.8], [-66.52999999999997, 18.97]]]]}, "2023-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.52999999999997, 18.97], [-66.75, 19.5], [-66.52999999999997, 20.03], [-66.0, 20.25], [-65.75, 20.15], [-65.5, 20.25], [-65.25, 20.15], [-65.18, 20.18], [-65.02999999999997, 20.53], [-64.5, 20.75], [-64.25, 20.65], [-64.0, 20.75], [-63.75, 20.65], [-63.5, 20.75], [-63.25, 20.65], [-63.0, 20.75], [-62.75, 20.65], [-62.5, 20.75], [-61.97000000000003, 20.53], [-61.81999999999999, 20.18], [-61.47000000000003, 20.03], [-61.25, 19.5], [-61.47000000000003, 18.97], [-61.81999999999999, 18.82], [-61.870000000000005, 18.7], [-61.75, 18.65], [-61.5, 18.75], [-60.97000000000003, 18.53], [-60.75, 18.0], [-60.97000000000003, 17.47], [-61.5, 17.25], [-61.75, 17.35], [-62.0, 17.25], [-62.25, 17.35], [-62.5, 17.25], [-62.75, 17.35], [-63.0, 17.25], [-63.25, 17.35], [-63.5, 17.25], [-63.75, 17.35], [-64.0, 17.25], [-64.25, 17.35], [-64.5, 17.25], [-65.02999999999997, 17.47], [-65.18, 17.82], [-65.25, 17.85], [-65.5, 17.75], [-66.02999999999997, 17.97], [-66.25, 18.5], [-66.12, 18.8], [-66.52999999999997, 18.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.205657682076037}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8142878323846503}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.50443170625209, 25.696395202183396, 25.54679435358952]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.665744458166785, 25.780851630682776, 25.792347977500867]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7235344421888994, 0.9176803413296101, 0.8016487136354414]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8520071418457178, 1.205657682076037, 1.0435352126824569]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.315666223679863, 1.7088206436246318, 1.4849973943437287]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4579816540794086, 2.0842834141239943, 1.838291707840262]}}