{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:32:30.763611", "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": "2022-Sep-17_to_2022-Sep-19_99.0_34.5"}, "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": 2022090002170}, "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": "September 17 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 19 2022"}, "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": 54275.85571233463}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "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": 34.5}, "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": 99.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "99.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 96.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 100.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.0, 34.25], [97.5, 34.04], [98.0, 34.25], [98.25, 34.15], [98.32, 34.18], [98.35, 34.25], [98.25, 34.5], [98.47, 35.03], [99.0, 35.25], [99.53, 35.03], [99.68, 34.68], [100.03, 34.53], [100.18, 34.18], [100.25, 34.15], [100.5, 34.25], [101.03, 34.03], [101.25, 33.5], [101.15, 33.25], [101.25, 33.0], [101.03, 32.47], [100.5, 32.25], [100.25, 32.35], [100.0, 32.25], [99.75, 32.35], [99.5, 32.25], [99.25, 32.35], [99.0, 32.25], [98.75, 32.35], [98.68, 32.32], [98.65, 32.25], [98.75, 32.0], [98.53, 31.47], [98.0, 31.25], [97.47, 31.47], [97.25, 32.0], [97.35, 32.25], [97.32, 32.32], [97.25, 32.35], [97.0, 32.25], [96.75, 32.35], [96.5, 32.25], [95.97, 32.47], [95.75, 33.0], [95.97, 33.53], [96.32, 33.68], [96.47, 34.03], [97.0, 34.25]]]]}, "2022-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.0, 34.25], [97.5, 34.04], [98.0, 34.25], [98.25, 34.15], [98.32, 34.18], [98.35, 34.25], [98.25, 34.5], [98.47, 35.03], [99.0, 35.25], [99.53, 35.03], [99.68, 34.68], [100.03, 34.53], [100.18, 34.18], [100.25, 34.15], [100.5, 34.25], [101.03, 34.03], [101.25, 33.5], [101.15, 33.25], [101.25, 33.0], [101.03, 32.47], [100.5, 32.25], [100.25, 32.35], [100.0, 32.25], [99.75, 32.35], [99.5, 32.25], [99.25, 32.35], [99.0, 32.25], [98.75, 32.35], [98.68, 32.32], [98.65, 32.25], [98.75, 32.0], [98.53, 31.47], [98.0, 31.25], [97.47, 31.47], [97.25, 32.0], [97.35, 32.25], [97.32, 32.32], [97.25, 32.35], [97.0, 32.25], [96.75, 32.35], [96.5, 32.25], [95.97, 32.47], [95.75, 33.0], [95.97, 33.53], [96.32, 33.68], [96.47, 34.03], [97.0, 34.25]]]]}, "2022-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.0, 34.25], [97.5, 34.04], [98.0, 34.25], [98.25, 34.15], [98.32, 34.18], [98.35, 34.25], [98.25, 34.5], [98.47, 35.03], [99.0, 35.25], [99.53, 35.03], [99.68, 34.68], [100.03, 34.53], [100.18, 34.18], [100.25, 34.15], [100.5, 34.25], [101.03, 34.03], [101.25, 33.5], [101.15, 33.25], [101.25, 33.0], [101.03, 32.47], [100.5, 32.25], [100.25, 32.35], [100.0, 32.25], [99.75, 32.35], [99.5, 32.25], [99.25, 32.35], [99.0, 32.25], [98.75, 32.35], [98.68, 32.32], [98.65, 32.25], [98.75, 32.0], [98.53, 31.47], [98.0, 31.25], [97.47, 31.47], [97.25, 32.0], [97.35, 32.25], [97.32, 32.32], [97.25, 32.35], [97.0, 32.25], [96.75, 32.35], [96.5, 32.25], [95.97, 32.47], [95.75, 33.0], [95.97, 33.53], [96.32, 33.68], [96.47, 34.03], [97.0, 34.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.428743298802999}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.7551604170487116}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.512289701105033, 8.814753519279463, 8.434883226079648]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.330275666039654, 10.358442684519048, 9.905598475141176]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.5185065153401665, 3.9680044823616534, 3.778970253444316]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.85443409218999, 5.428743298802999, 4.186989293731131]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.420509169693715, 1.5737970189668915, 1.4778223416517051]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7968636656262766, 2.018222672055898, 1.7081985101050117]}}