{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:11.341740", "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-Feb-11_to_2019-Feb-14_54.0_12.0"}, "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": 2019020001639}, "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 11 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 14 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": 54487.85151100327}, "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": ["Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Sea", "N.Eastern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Arabian 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": 12.0}, "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": 54.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "54.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 51.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 55.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 12.53], [53.82, 12.68], [53.97, 13.03], [54.5, 13.25], [54.75, 13.15], [55.0, 13.25], [55.53, 13.03], [55.75, 12.5], [55.65, 12.25], [55.75, 12.0], [55.65, 11.75], [55.75, 11.5], [55.53, 10.97], [55.18, 10.82], [55.03, 10.47], [54.5, 10.25], [53.97, 10.47], [53.82, 10.82], [53.47, 10.97], [53.25, 11.5], [53.35, 11.75], [53.25, 12.0], [53.47, 12.53]]]]}, "2019-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.47, 12.03], [52.0, 12.25], [52.25, 12.15], [52.5, 12.25], [52.75, 12.15], [52.82, 12.18], [52.85, 12.25], [52.75, 12.5], [52.97, 13.03], [53.5, 13.25], [54.0, 13.04], [54.5, 13.25], [54.75, 13.15], [55.0, 13.25], [55.53, 13.03], [55.75, 12.5], [55.65, 12.25], [55.75, 12.0], [55.65, 11.75], [55.75, 11.5], [55.53, 10.97], [55.18, 10.82], [55.03, 10.47], [54.5, 10.25], [54.0, 10.46], [53.5, 10.25], [53.25, 10.35], [53.0, 10.25], [52.5, 10.46], [52.0, 10.25], [51.47, 10.47], [51.25, 11.0], [51.35, 11.25], [51.25, 11.5], [51.47, 12.03]]]]}, "2019-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.47, 12.03], [52.0, 12.25], [52.25, 12.15], [52.5, 12.25], [52.75, 12.15], [52.82, 12.18], [52.85, 12.25], [52.75, 12.5], [52.97, 13.03], [53.5, 13.25], [54.0, 13.04], [54.5, 13.25], [54.75, 13.15], [55.0, 13.25], [55.53, 13.03], [55.75, 12.5], [55.65, 12.25], [55.75, 12.0], [55.65, 11.75], [55.75, 11.5], [55.53, 10.97], [55.18, 10.82], [55.03, 10.47], [54.5, 10.25], [54.0, 10.46], [53.5, 10.25], [53.25, 10.35], [53.0, 10.25], [52.5, 10.46], [52.0, 10.25], [51.47, 10.47], [51.25, 11.0], [51.35, 11.25], [51.25, 11.5], [51.47, 12.03]]]]}, "2019-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.47, 12.03], [52.0, 12.25], [52.25, 12.15], [52.5, 12.25], [52.75, 12.15], [52.82, 12.18], [52.85, 12.25], [52.75, 12.5], [52.97, 13.03], [53.5, 13.25], [54.03, 13.03], [54.18, 12.68], [54.25, 12.65], [54.5, 12.75], [55.03, 12.53], [55.25, 12.0], [55.03, 11.47], [54.68, 11.32], [54.53, 10.97], [54.18, 10.82], [54.03, 10.47], [53.5, 10.25], [53.25, 10.35], [53.0, 10.25], [52.5, 10.46], [52.0, 10.25], [51.47, 10.47], [51.25, 11.0], [51.35, 11.25], [51.25, 11.5], [51.47, 12.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.617026378653577}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0493853179545503}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.377216079673076, 25.798971150871125, 25.65735633635495, 25.576955331023896]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.63432810450439, 26.097259222314335, 26.50820688499897, 26.068969346984716]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.922527839937143, 1.2240164798585087, 1.0574479520348694, 0.8704877324911896]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9867528100568848, 1.6131653262638679, 1.617026378653577, 1.110818394379919]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5554934470484019, 2.0287722240787867, 1.7672576075377482, 1.4929613684959993]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.681314866337728, 2.6421168154066623, 2.216565817563648, 1.7123827837309638]}}