{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:44.612958", "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": "2012-Feb-20_to_2012-Feb-22_78.0_35.5"}, "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": 2012020002453}, "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 20 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 22 2012"}, "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": 61039.08904652367}, "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": ["China", "India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Tibetan-Plateau"]}, "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": 35.5}, "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": 78.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "78.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 75.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 79.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.47, 33.97], [75.25, 34.5], [75.47, 35.03], [76.0, 35.25], [76.25, 35.15], [76.38, 35.2], [76.25, 35.5], [76.47, 36.03], [76.82, 36.18], [76.97, 36.53], [77.5, 36.75], [77.75, 36.65], [78.0, 36.75], [78.25, 36.65], [78.5, 36.75], [79.03, 36.53], [79.25, 36.0], [79.15, 35.75], [79.25, 35.5], [79.15, 35.25], [79.18, 35.18], [79.53, 35.03], [79.75, 34.5], [79.65, 34.25], [79.75, 34.0], [79.53, 33.47], [79.0, 33.25], [78.75, 33.35], [78.5, 33.25], [78.25, 33.35], [78.0, 33.25], [77.75, 33.35], [77.68, 33.32], [77.65, 33.25], [77.75, 33.0], [77.65, 32.75], [77.75, 32.5], [77.53, 31.97], [77.0, 31.75], [76.47, 31.97], [76.25, 32.5], [76.35, 32.75], [76.25, 33.0], [76.35, 33.25], [76.25, 33.5], [76.35, 33.75], [76.32, 33.82], [76.25, 33.85], [76.0, 33.75], [75.47, 33.97]]]]}, "2012-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.47, 33.97], [75.25, 34.5], [75.47, 35.03], [76.0, 35.25], [76.25, 35.15], [76.38, 35.2], [76.25, 35.5], [76.47, 36.03], [76.82, 36.18], [76.97, 36.53], [77.5, 36.75], [77.75, 36.65], [78.0, 36.75], [78.25, 36.65], [78.5, 36.75], [79.03, 36.53], [79.25, 36.0], [79.15, 35.75], [79.25, 35.5], [79.15, 35.25], [79.18, 35.18], [79.53, 35.03], [79.75, 34.5], [79.65, 34.25], [79.75, 34.0], [79.53, 33.47], [79.0, 33.25], [78.75, 33.35], [78.5, 33.25], [78.25, 33.35], [78.0, 33.25], [77.75, 33.35], [77.68, 33.32], [77.65, 33.25], [77.75, 33.0], [77.65, 32.75], [77.75, 32.5], [77.53, 31.97], [77.0, 31.75], [76.47, 31.97], [76.25, 32.5], [76.35, 32.75], [76.25, 33.0], [76.35, 33.25], [76.25, 33.5], [76.35, 33.75], [76.32, 33.82], [76.25, 33.85], [76.0, 33.75], [75.47, 33.97]]]]}, "2012-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.47, 33.97], [75.25, 34.5], [75.47, 35.03], [76.0, 35.25], [76.25, 35.15], [76.38, 35.2], [76.25, 35.5], [76.47, 36.03], [76.82, 36.18], [76.97, 36.53], [77.5, 36.75], [77.75, 36.65], [78.0, 36.75], [78.25, 36.65], [78.5, 36.75], [79.03, 36.53], [79.25, 36.0], [79.15, 35.75], [79.25, 35.5], [79.15, 35.25], [79.18, 35.18], [79.53, 35.03], [79.75, 34.5], [79.65, 34.25], [79.75, 34.0], [79.53, 33.47], [79.0, 33.25], [78.75, 33.35], [78.5, 33.25], [78.25, 33.35], [78.0, 33.25], [77.75, 33.35], [77.68, 33.32], [77.65, 33.25], [77.75, 33.0], [77.65, 32.75], [77.75, 32.5], [77.53, 31.97], [77.0, 31.75], [76.47, 31.97], [76.25, 32.5], [76.35, 32.75], [76.25, 33.0], [76.35, 33.25], [76.25, 33.5], [76.35, 33.75], [76.32, 33.82], [76.25, 33.85], [76.0, 33.75], [75.47, 33.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.435970848893334}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.728658278092156}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-15.661841812585521, -15.270377794688613, -15.366525648402671]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-9.244594678062413, -9.224380171394898, -7.702168558556764]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.678170695607257, 5.893596489970233, 5.614207648698977]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.152768876322767, 8.435970848893334, 8.034960849245692]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.520634615868689, 1.6193920864557947, 1.5929670049622588]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7534859709757133, 2.0329809062541506, 1.9955161296470088]}}