{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:37.561435", "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-Aug-19_to_2022-Aug-26_96.0_37.5"}, "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": 2022080002538}, "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": "August 19 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 26 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 67846.97560125125}, "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"]}, "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": 37.5}, "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": 96.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "96.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 93.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 97.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[97.0, 37.75], [97.53, 37.53], [97.75, 37.0], [97.53, 36.47], [97.0, 36.25], [96.75, 36.35], [96.5, 36.25], [95.97, 36.47], [95.82, 36.82], [95.75, 36.85], [95.5, 36.75], [94.97, 36.97], [94.82, 37.32], [94.75, 37.35], [94.5, 37.25], [94.25, 37.35], [94.18, 37.32], [94.03, 36.97], [93.5, 36.75], [93.25, 36.85], [93.0, 36.75], [92.47, 36.97], [92.25, 37.5], [92.47, 38.03], [92.82, 38.18], [92.97, 38.53], [93.32, 38.68], [93.35, 38.75], [93.25, 39.0], [93.47, 39.53], [94.0, 39.75], [94.25, 39.65], [94.32, 39.68], [94.47, 40.03], [95.0, 40.25], [95.5, 40.04], [96.0, 40.25], [96.25, 40.15], [96.5, 40.25], [97.03, 40.03], [97.18, 39.68], [97.53, 39.53], [97.75, 39.0], [97.53, 38.47], [97.18, 38.32], [97.03, 37.97], [96.68, 37.82], [96.65, 37.75], [96.68, 37.68], [96.75, 37.65], [97.0, 37.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "Tibetan-Plateau"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.97, 38.53], [93.32, 38.68], [93.35, 38.75], [93.25, 39.0], [93.47, 39.53], [94.0, 39.75], [94.25, 39.65], [94.32, 39.68], [94.47, 40.03], [95.0, 40.25], [95.5, 40.04], [96.0, 40.25], [96.25, 40.15], [96.5, 40.25], [97.03, 40.03], [97.18, 39.68], [97.53, 39.53], [97.75, 39.0], [97.53, 38.47], [97.18, 38.32], [97.03, 37.97], [96.68, 37.82], [96.65, 37.75], [96.75, 37.5], [96.53, 36.97], [96.0, 36.75], [95.75, 36.85], [95.5, 36.75], [94.97, 36.97], [94.82, 37.32], [94.75, 37.35], [94.5, 37.25], [94.25, 37.35], [94.18, 37.32], [94.03, 36.97], [93.5, 36.75], [93.25, 36.85], [93.0, 36.75], [92.47, 36.97], [92.25, 37.5], [92.47, 38.03], [92.82, 38.18], [92.97, 38.53]]]]}, "2022-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.97, 38.53], [93.32, 38.68], [93.35, 38.75], [93.25, 39.0], [93.47, 39.53], [94.0, 39.75], [94.25, 39.65], [94.32, 39.68], [94.47, 40.03], [95.0, 40.25], [95.5, 40.04], [96.0, 40.25], [96.25, 40.15], [96.5, 40.25], [97.03, 40.03], [97.18, 39.68], [97.53, 39.53], [97.75, 39.0], [97.53, 38.47], [97.18, 38.32], [97.03, 37.97], [96.68, 37.82], [96.65, 37.75], [96.75, 37.5], [96.53, 36.97], [96.0, 36.75], [95.75, 36.85], [95.5, 36.75], [94.97, 36.97], [94.82, 37.32], [94.75, 37.35], [94.5, 37.25], [94.25, 37.35], [94.18, 37.32], [94.03, 36.97], [93.5, 36.75], [93.25, 36.85], [93.0, 36.75], [92.47, 36.97], [92.25, 37.5], [92.47, 38.03], [92.82, 38.18], [92.97, 38.53]]]]}, "2022-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.97, 38.53], [93.32, 38.68], [93.35, 38.75], [93.25, 39.0], [93.47, 39.53], [94.0, 39.75], [94.25, 39.65], [94.32, 39.68], [94.47, 40.03], [95.0, 40.25], [95.5, 40.04], [96.0, 40.25], [96.25, 40.15], [96.5, 40.25], [97.03, 40.03], [97.18, 39.68], [97.53, 39.53], [97.75, 39.0], [97.53, 38.47], [97.18, 38.32], [97.03, 37.97], [96.68, 37.82], [96.65, 37.75], [96.75, 37.5], [96.53, 36.97], [96.0, 36.75], [95.75, 36.85], [95.5, 36.75], [94.97, 36.97], [94.82, 37.32], [94.75, 37.35], [94.5, 37.25], [94.25, 37.35], [94.18, 37.32], [94.03, 36.97], [93.5, 36.75], [93.25, 36.85], [93.0, 36.75], [92.47, 36.97], [92.25, 37.5], [92.47, 38.03], [92.82, 38.18], [92.97, 38.53]]]]}, "2022-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.47, 37.47], [94.25, 38.0], [94.47, 38.53], [94.82, 38.68], [94.97, 39.03], [95.5, 39.25], [95.75, 39.15], [95.82, 39.18], [95.97, 39.53], [96.5, 39.75], [96.75, 39.65], [97.0, 39.75], [97.53, 39.53], [97.75, 39.0], [97.53, 38.47], [97.18, 38.32], [97.03, 37.97], [96.68, 37.82], [96.65, 37.75], [96.68, 37.68], [96.75, 37.65], [97.0, 37.75], [97.53, 37.53], [97.75, 37.0], [97.53, 36.47], [97.0, 36.25], [96.75, 36.35], [96.5, 36.25], [95.97, 36.47], [95.82, 36.82], [95.75, 36.85], [95.5, 36.75], [94.97, 36.97], [94.82, 37.32], [94.47, 37.47]]]]}, "2022-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.75, 38.0], [94.85, 38.25], [94.75, 38.5], [94.97, 39.03], [95.5, 39.25], [95.75, 39.15], [95.82, 39.18], [95.97, 39.53], [96.5, 39.75], [96.75, 39.65], [97.0, 39.75], [97.53, 39.53], [97.75, 39.0], [97.53, 38.47], [97.18, 38.32], [97.03, 37.97], [96.68, 37.82], [96.65, 37.75], [96.68, 37.68], [96.75, 37.65], [97.0, 37.75], [97.53, 37.53], [97.75, 37.0], [97.53, 36.47], [97.0, 36.25], [96.75, 36.35], [96.5, 36.25], [95.97, 36.47], [95.82, 36.82], [95.75, 36.85], [95.5, 36.75], [94.97, 36.97], [94.75, 37.5], [94.85, 37.75], [94.75, 38.0]]]]}, "2022-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.5, 36.25], [95.97, 36.47], [95.75, 37.0], [95.97, 37.53], [96.5, 37.75], [96.75, 37.65], [97.0, 37.75], [97.53, 37.53], [97.75, 37.0], [97.53, 36.47], [97.0, 36.25], [96.75, 36.35], [96.5, 36.25]]]]}, "2022-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.5, 36.25], [95.97, 36.47], [95.75, 37.0], [95.97, 37.53], [96.5, 37.75], [96.75, 37.65], [97.0, 37.75], [97.53, 37.53], [97.75, 37.0], [97.53, 36.47], [97.0, 36.25], [96.75, 36.35], [96.5, 36.25]]]]}, "2022-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.5, 36.25], [95.97, 36.47], [95.75, 37.0], [95.97, 37.53], [96.5, 37.75], [96.75, 37.65], [97.0, 37.75], [97.53, 37.53], [97.75, 37.0], [97.53, 36.47], [97.0, 36.25], [96.75, 36.35], [96.5, 36.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.427916839860302}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.159480567057155}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.322332140356593, 15.117445534793262, 13.995042241236206, 13.142124776971343, 12.711075181648198, 20.762048432878487, 22.716919592259217, 22.86330326984273]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.500662439832524, 23.039948757020795, 21.66284858854732, 23.297236749215074, 21.733139467660806, 20.774278377997348, 22.875157551118434, 22.908800335302203]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8288297748327738, 4.733013513320326, 3.7453790675925016, 4.1543103709642395, 4.169949695955707, 3.5126342276243463, 5.45643669689656, 5.708663234802259]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.536412887002427, 7.427916839860302, 4.5027456342351115, 5.745635364659506, 4.686379225092594, 3.5665442493356068, 5.650686730138204, 5.7998206098453124]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5651857939227771, 1.9822328219825402, 1.6267124989058916, 1.698455673392363, 1.6591892680631715, 1.3739736636825473, 2.1262397758546845, 2.186545083226716]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.816884970240162, 3.0044793106728065, 2.1172726537658098, 2.304704338534838, 2.050740974197162, 1.3840881807992818, 2.190802850678768, 2.2068173667136484]}}