{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:51:56.985724", "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": "2023-Mar-03_to_2023-Mar-11_96.0_34.0"}, "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": 2023030001366}, "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": "March 03 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 75987.41923091175}, "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": 34.0}, "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": 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": 95.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[94.82, 33.82], [94.47, 33.97], [94.25, 34.5], [94.35, 34.75], [94.25, 35.0], [94.47, 35.53], [94.82, 35.68], [94.97, 36.03], [95.32, 36.18], [95.47, 36.53], [96.0, 36.75], [96.53, 36.53], [96.68, 36.18], [96.75, 36.15], [97.0, 36.25], [97.25, 36.15], [97.32, 36.18], [97.47, 36.53], [98.0, 36.75], [98.25, 36.65], [98.5, 36.75], [99.03, 36.53], [99.18, 36.18], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.03, 34.97], [99.5, 34.75], [99.25, 34.85], [99.18, 34.82], [99.15, 34.75], [99.25, 34.5], [99.03, 33.97], [98.5, 33.75], [97.97, 33.97], [97.82, 34.32], [97.75, 34.35], [97.5, 34.25], [97.25, 34.35], [97.18, 34.32], [97.15, 34.25], [97.25, 34.0], [97.15, 33.75], [97.25, 33.5], [97.03, 32.97], [96.5, 32.75], [96.25, 32.85], [96.0, 32.75], [95.47, 32.97], [95.32, 33.32], [94.97, 33.47], [94.82, 33.82]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Tibetan-Plateau", "E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.75, 34.5], [94.97, 35.03], [95.5, 35.25], [96.03, 35.03], [96.18, 34.68], [96.53, 34.53], [96.75, 34.0], [96.53, 33.47], [96.0, 33.25], [95.75, 33.35], [95.5, 33.25], [94.97, 33.47], [94.75, 34.0], [94.85, 34.25], [94.75, 34.5]]]]}, "2023-03-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 35.0], [94.47, 35.53], [94.82, 35.68], [94.97, 36.03], [95.5, 36.25], [95.75, 36.15], [96.0, 36.25], [96.5, 36.04], [97.0, 36.25], [97.25, 36.15], [97.32, 36.18], [97.47, 36.53], [98.0, 36.75], [98.53, 36.53], [98.68, 36.18], [98.75, 36.15], [99.0, 36.25], [99.53, 36.03], [99.75, 35.5], [99.53, 34.97], [99.18, 34.82], [99.03, 34.47], [98.5, 34.25], [98.25, 34.35], [98.0, 34.25], [97.5, 34.46], [97.18, 34.32], [97.15, 34.25], [97.25, 34.0], [97.15, 33.75], [97.25, 33.5], [97.03, 32.97], [96.5, 32.75], [96.25, 32.85], [96.0, 32.75], [95.47, 32.97], [95.32, 33.32], [94.97, 33.47], [94.82, 33.82], [94.47, 33.97], [94.25, 34.5], [94.35, 34.75], [94.25, 35.0]]]]}, "2023-03-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 35.0], [94.47, 35.53], [94.82, 35.68], [94.97, 36.03], [95.32, 36.18], [95.47, 36.53], [96.0, 36.75], [96.53, 36.53], [96.68, 36.18], [96.75, 36.15], [97.0, 36.25], [97.25, 36.15], [97.32, 36.18], [97.47, 36.53], [98.0, 36.75], [98.25, 36.65], [98.5, 36.75], [99.03, 36.53], [99.18, 36.18], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.03, 34.97], [99.5, 34.75], [99.25, 34.85], [99.18, 34.82], [99.15, 34.75], [99.25, 34.5], [99.03, 33.97], [98.5, 33.75], [97.97, 33.97], [97.82, 34.32], [97.75, 34.35], [97.5, 34.25], [97.25, 34.35], [97.18, 34.32], [97.15, 34.25], [97.25, 34.0], [97.15, 33.75], [97.25, 33.5], [97.03, 32.97], [96.5, 32.75], [96.25, 32.85], [96.0, 32.75], [95.47, 32.97], [95.32, 33.32], [94.97, 33.47], [94.82, 33.82], [94.47, 33.97], [94.25, 34.5], [94.35, 34.75], [94.25, 35.0]]]]}, "2023-03-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 35.0], [94.47, 35.53], [94.82, 35.68], [94.97, 36.03], [95.32, 36.18], [95.47, 36.53], [96.0, 36.75], [96.53, 36.53], [96.68, 36.18], [96.75, 36.15], [97.0, 36.25], [97.25, 36.15], [97.32, 36.18], [97.47, 36.53], [98.0, 36.75], [98.25, 36.65], [98.5, 36.75], [99.03, 36.53], [99.18, 36.18], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.03, 34.97], [99.5, 34.75], [99.25, 34.85], [99.18, 34.82], [99.15, 34.75], [99.25, 34.5], [99.03, 33.97], [98.5, 33.75], [97.97, 33.97], [97.82, 34.32], [97.75, 34.35], [97.5, 34.25], [97.25, 34.35], [97.18, 34.32], [97.15, 34.25], [97.25, 34.0], [97.15, 33.75], [97.25, 33.5], [97.03, 32.97], [96.5, 32.75], [96.25, 32.85], [96.0, 32.75], [95.47, 32.97], [95.32, 33.32], [94.97, 33.47], [94.82, 33.82], [94.47, 33.97], [94.25, 34.5], [94.35, 34.75], [94.25, 35.0]]]]}, "2023-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.75, 34.5], [94.85, 34.75], [94.75, 35.0], [94.97, 35.53], [95.32, 35.68], [95.35, 35.75], [95.25, 36.0], [95.47, 36.53], [96.0, 36.75], [96.53, 36.53], [96.68, 36.18], [96.75, 36.15], [97.0, 36.25], [97.25, 36.15], [97.32, 36.18], [97.47, 36.53], [98.0, 36.75], [98.25, 36.65], [98.5, 36.75], [99.03, 36.53], [99.18, 36.18], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.03, 34.97], [99.5, 34.75], [99.25, 34.85], [99.18, 34.82], [99.15, 34.75], [99.25, 34.5], [99.03, 33.97], [98.5, 33.75], [97.97, 33.97], [97.82, 34.32], [97.75, 34.35], [97.5, 34.25], [97.25, 34.35], [97.0, 34.25], [96.75, 34.35], [96.68, 34.32], [96.65, 34.25], [96.68, 34.18], [97.03, 34.03], [97.25, 33.5], [97.03, 32.97], [96.5, 32.75], [96.25, 32.85], [96.0, 32.75], [95.47, 32.97], [95.32, 33.32], [94.97, 33.47], [94.75, 34.0], [94.85, 34.25], [94.75, 34.5]]]]}, "2023-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 35.0], [94.47, 35.53], [94.82, 35.68], [94.97, 36.03], [95.5, 36.25], [95.75, 36.15], [96.0, 36.25], [96.5, 36.04], [97.0, 36.25], [97.25, 36.15], [97.5, 36.25], [97.75, 36.15], [97.82, 36.18], [97.97, 36.53], [98.5, 36.75], [99.03, 36.53], [99.18, 36.18], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.03, 34.97], [99.5, 34.75], [99.25, 34.85], [99.18, 34.82], [99.15, 34.75], [99.25, 34.5], [99.03, 33.97], [98.5, 33.75], [97.97, 33.97], [97.82, 34.32], [97.5, 34.46], [97.0, 34.25], [96.75, 34.35], [96.68, 34.32], [96.65, 34.25], [96.75, 34.0], [96.65, 33.75], [96.75, 33.5], [96.53, 32.97], [96.0, 32.75], [95.47, 32.97], [95.32, 33.32], [94.97, 33.47], [94.82, 33.82], [94.47, 33.97], [94.25, 34.5], [94.35, 34.75], [94.25, 35.0]]]]}, "2023-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 35.0], [94.47, 35.53], [94.82, 35.68], [94.97, 36.03], [95.5, 36.25], [95.75, 36.15], [96.0, 36.25], [96.5, 36.04], [97.0, 36.25], [97.25, 36.15], [97.5, 36.25], [97.75, 36.15], [97.82, 36.18], [97.97, 36.53], [98.5, 36.75], [99.03, 36.53], [99.18, 36.18], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.03, 34.97], [99.5, 34.75], [99.25, 34.85], [99.18, 34.82], [99.15, 34.75], [99.25, 34.5], [99.03, 33.97], [98.5, 33.75], [97.97, 33.97], [97.82, 34.32], [97.5, 34.46], [97.0, 34.25], [96.75, 34.35], [96.68, 34.32], [96.65, 34.25], [96.75, 34.0], [96.65, 33.75], [96.75, 33.5], [96.53, 32.97], [96.0, 32.75], [95.47, 32.97], [95.32, 33.32], [94.97, 33.47], [94.82, 33.82], [94.47, 33.97], [94.25, 34.5], [94.35, 34.75], [94.25, 35.0]]]]}, "2023-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 35.0], [94.47, 35.53], [94.82, 35.68], [94.97, 36.03], [95.5, 36.25], [95.75, 36.15], [96.0, 36.25], [96.5, 36.04], [97.0, 36.25], [97.25, 36.15], [97.5, 36.25], [97.75, 36.15], [97.82, 36.18], [97.97, 36.53], [98.5, 36.75], [99.03, 36.53], [99.18, 36.18], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.03, 34.97], [99.5, 34.75], [99.25, 34.85], [99.18, 34.82], [99.15, 34.75], [99.25, 34.5], [99.03, 33.97], [98.5, 33.75], [97.97, 33.97], [97.82, 34.32], [97.5, 34.46], [97.0, 34.25], [96.75, 34.35], [96.68, 34.32], [96.65, 34.25], [96.75, 34.0], [96.53, 33.47], [96.0, 33.25], [95.75, 33.35], [95.5, 33.25], [94.97, 33.47], [94.82, 33.82], [94.47, 33.97], [94.25, 34.5], [94.35, 34.75], [94.25, 35.0]]]]}, "2023-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[95.47, 34.53], [96.0, 34.75], [96.53, 34.53], [96.75, 34.0], [96.53, 33.47], [96.0, 33.25], [95.47, 33.47], [95.25, 34.0], [95.47, 34.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.71530848975533}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.018630736662228}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-8.854826759949674, -8.123969931059094, -7.188592544150197, -6.624472885239868, -7.916473929772906, -8.045236915808857, -5.87189098523919, -6.415493695693499, -7.786526075568645]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.741101716610387, -3.8288525248324277, -2.407674872948803, -1.140092596912325, -2.527285870472099, -6.809037255739497, -4.518840511130406, -5.2023119052963125, -7.786526075568645]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.445869276936776, 5.5493372299146815, 6.288670936032257, 6.654067761823111, 5.0675933799788, 5.166607220531066, 7.175875393692694, 6.353786543164109, 4.218062475212093]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.628888630646543, 6.751350138402302, 7.849109315787587, 8.71530848975533, 6.261765567948942, 6.14566364639137, 8.193811113474226, 7.41262360017663, 4.218062475212093]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.355562084688912, 1.5788808136943542, 1.835249362327705, 1.9957694812282663, 1.6196069287860106, 1.628111929344539, 2.290455032963718, 2.0050992601572646, 1.4803185966984393]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5138866671741384, 2.2236700685219217, 2.341602140237094, 2.4928293373326023, 1.9466700201971014, 1.9696534780223296, 2.840007533282119, 2.367625251132955, 1.4803185966984393]}}