{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:17.322520", "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": "2018-Feb-23_to_2018-Feb-27_86.5_22.0"}, "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": 2018020002213}, "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 23 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 27 2018"}, "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": 62886.12883978258}, "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": ["India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "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": []}, "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": 22.0}, "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": 86.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "86.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 83.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 87.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.97, 22.47], [83.75, 23.0], [83.97, 23.53], [84.5, 23.75], [85.0, 23.54], [85.5, 23.75], [85.8, 23.63], [85.97, 24.03], [86.5, 24.25], [87.03, 24.03], [87.18, 23.68], [87.53, 23.53], [87.68, 23.18], [88.03, 23.03], [88.25, 22.5], [88.03, 21.97], [87.68, 21.82], [87.53, 21.47], [87.0, 21.25], [86.75, 21.35], [86.5, 21.25], [85.97, 21.47], [85.82, 21.82], [85.75, 21.85], [85.5, 21.75], [84.97, 21.97], [84.8, 22.38], [84.5, 22.25], [83.97, 22.47]]]]}, "2018-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.25, 22.0], [83.47, 22.53], [83.88, 22.7], [83.75, 23.0], [83.97, 23.53], [84.5, 23.75], [85.0, 23.54], [85.5, 23.75], [85.8, 23.63], [85.97, 24.03], [86.5, 24.25], [87.03, 24.03], [87.18, 23.68], [87.25, 23.65], [87.5, 23.75], [88.03, 23.53], [88.25, 23.0], [88.15, 22.75], [88.25, 22.5], [88.03, 21.97], [87.68, 21.82], [87.53, 21.47], [87.18, 21.32], [87.03, 20.97], [86.5, 20.75], [86.25, 20.85], [86.0, 20.75], [85.47, 20.97], [85.32, 21.32], [85.25, 21.35], [85.18, 21.32], [85.03, 20.97], [84.5, 20.75], [83.97, 20.97], [83.82, 21.32], [83.47, 21.47], [83.25, 22.0]]]]}, "2018-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.25, 22.0], [83.47, 22.53], [83.88, 22.7], [83.75, 23.0], [83.97, 23.53], [84.5, 23.75], [85.0, 23.54], [85.5, 23.75], [85.8, 23.63], [85.97, 24.03], [86.5, 24.25], [87.03, 24.03], [87.18, 23.68], [87.25, 23.65], [87.5, 23.75], [88.03, 23.53], [88.25, 23.0], [88.15, 22.75], [88.25, 22.5], [88.03, 21.97], [87.68, 21.82], [87.53, 21.47], [87.18, 21.32], [87.03, 20.97], [86.5, 20.75], [86.25, 20.85], [86.0, 20.75], [85.47, 20.97], [85.32, 21.32], [85.25, 21.35], [85.18, 21.32], [85.03, 20.97], [84.5, 20.75], [83.97, 20.97], [83.82, 21.32], [83.47, 21.47], [83.25, 22.0]]]]}, "2018-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.25, 22.0], [83.47, 22.53], [84.0, 22.75], [84.25, 22.65], [84.32, 22.68], [84.47, 23.03], [85.0, 23.25], [85.25, 23.15], [85.5, 23.25], [85.75, 23.15], [85.82, 23.18], [85.97, 23.53], [86.5, 23.75], [87.0, 23.54], [87.5, 23.75], [88.03, 23.53], [88.25, 23.0], [88.15, 22.75], [88.25, 22.5], [88.03, 21.97], [87.68, 21.82], [87.53, 21.47], [87.18, 21.32], [87.03, 20.97], [86.5, 20.75], [86.25, 20.85], [86.0, 20.75], [85.47, 20.97], [85.32, 21.32], [85.25, 21.35], [85.18, 21.32], [85.03, 20.97], [84.5, 20.75], [83.97, 20.97], [83.82, 21.32], [83.47, 21.47], [83.25, 22.0]]]]}, "2018-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.5, 22.75], [87.03, 22.53], [87.25, 22.0], [87.03, 21.47], [86.5, 21.25], [85.97, 21.47], [85.75, 22.0], [85.97, 22.53], [86.5, 22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.142901406917986}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.51385592210888}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.18255582436575, 27.269168382438863, 27.42866189224611, 27.178364152405436, 26.52562236382977]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.390329065061394, 28.396666463274357, 29.217005316815573, 28.11453758194034, 26.52562236382977]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.1671655186868914, 3.7570214300827987, 3.7821045876574533, 3.1222659771600925, 3.1249575513340915]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.740593093217228, 4.887170180338444, 5.142901406917986, 4.055315841523509, 3.1249575513340915]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4048023822880262, 1.7053198145079416, 1.777229309621037, 1.5033568460094637, 1.4280350435292926]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6131867901030315, 2.168083462031046, 2.290056820282778, 1.8519675781494815, 1.4280350435292926]}}