{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:28:40.587768", "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": "2021-Dec-04_to_2021-Dec-09_97.5_39.5"}, "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": 2021120001491}, "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": "December 04 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 09 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 69948.61379359034}, "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.C.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": 39.5}, "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": 97.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "97.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 94.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.97, 38.97], [94.75, 39.5], [94.97, 40.03], [95.5, 40.25], [96.0, 40.04], [96.5, 40.25], [97.0, 40.04], [97.5, 40.25], [97.75, 40.15], [98.0, 40.25], [98.53, 40.03], [98.68, 39.68], [99.03, 39.53], [99.2, 39.13], [99.5, 39.25], [100.03, 39.03], [100.25, 38.5], [100.03, 37.97], [99.5, 37.75], [98.97, 37.97], [98.8, 38.38], [98.63, 38.3], [98.75, 38.0], [98.53, 37.47], [98.0, 37.25], [97.75, 37.35], [97.5, 37.25], [97.0, 37.46], [96.5, 37.25], [95.97, 37.47], [95.75, 38.0], [95.97, 38.53], [96.5, 38.75], [96.0, 38.96], [95.5, 38.75], [94.97, 38.97]], [[97.0, 38.54], [97.38, 38.7], [97.32, 38.82], [97.0, 38.96], [96.5, 38.75], [97.0, 38.54]]]]}, "2021-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.97, 38.47], [93.75, 39.0], [93.97, 39.53], [94.5, 39.75], [94.75, 39.65], [94.82, 39.68], [94.97, 40.03], [95.5, 40.25], [96.0, 40.04], [96.5, 40.25], [96.75, 40.15], [97.0, 40.25], [97.25, 40.15], [97.5, 40.25], [97.75, 40.15], [98.0, 40.25], [98.53, 40.03], [98.68, 39.68], [98.75, 39.65], [99.0, 39.75], [99.25, 39.65], [99.5, 39.75], [100.03, 39.53], [100.25, 39.0], [100.15, 38.75], [100.25, 38.5], [100.03, 37.97], [99.68, 37.82], [99.53, 37.47], [99.18, 37.32], [99.03, 36.97], [98.5, 36.75], [97.97, 36.97], [97.82, 37.32], [97.75, 37.35], [97.5, 37.25], [97.25, 37.35], [97.0, 37.25], [96.75, 37.35], [96.5, 37.25], [96.25, 37.35], [96.0, 37.25], [95.47, 37.47], [95.25, 38.0], [95.38, 38.3], [95.25, 38.35], [95.0, 38.25], [94.75, 38.35], [94.5, 38.25], [93.97, 38.47]]]]}, "2021-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.97, 38.47], [93.75, 39.0], [93.97, 39.53], [94.5, 39.75], [94.75, 39.65], [94.82, 39.68], [94.97, 40.03], [95.5, 40.25], [96.0, 40.04], [96.5, 40.25], [96.75, 40.15], [97.0, 40.25], [97.25, 40.15], [97.5, 40.25], [97.75, 40.15], [98.0, 40.25], [98.53, 40.03], [98.68, 39.68], [98.75, 39.65], [99.0, 39.75], [99.25, 39.65], [99.5, 39.75], [100.03, 39.53], [100.25, 39.0], [100.15, 38.75], [100.25, 38.5], [100.03, 37.97], [99.68, 37.82], [99.53, 37.47], [99.18, 37.32], [99.03, 36.97], [98.5, 36.75], [97.97, 36.97], [97.82, 37.32], [97.75, 37.35], [97.5, 37.25], [97.25, 37.35], [97.0, 37.25], [96.75, 37.35], [96.5, 37.25], [96.25, 37.35], [96.0, 37.25], [95.47, 37.47], [95.25, 38.0], [95.38, 38.3], [95.25, 38.35], [95.0, 38.25], [94.75, 38.35], [94.5, 38.25], [93.97, 38.47]]]]}, "2021-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.97, 38.47], [93.75, 39.0], [93.97, 39.53], [94.5, 39.75], [94.75, 39.65], [94.82, 39.68], [94.97, 40.03], [95.5, 40.25], [96.03, 40.03], [96.18, 39.68], [96.25, 39.65], [96.32, 39.68], [96.47, 40.03], [97.0, 40.25], [97.25, 40.15], [97.5, 40.25], [97.75, 40.15], [98.0, 40.25], [98.53, 40.03], [98.68, 39.68], [98.75, 39.65], [99.0, 39.75], [99.25, 39.65], [99.5, 39.75], [100.03, 39.53], [100.25, 39.0], [100.15, 38.75], [100.25, 38.5], [100.03, 37.97], [99.68, 37.82], [99.53, 37.47], [99.18, 37.32], [99.03, 36.97], [98.5, 36.75], [97.97, 36.97], [97.82, 37.32], [97.75, 37.35], [97.5, 37.25], [97.25, 37.35], [97.0, 37.25], [96.75, 37.35], [96.5, 37.25], [96.25, 37.35], [96.0, 37.25], [95.47, 37.47], [95.25, 38.0], [95.38, 38.3], [95.25, 38.35], [95.0, 38.25], [94.75, 38.35], [94.5, 38.25], [93.97, 38.47]]]]}, "2021-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.5, 39.75], [100.03, 39.53], [100.25, 39.0], [100.15, 38.75], [100.25, 38.5], [100.03, 37.97], [99.5, 37.75], [98.97, 37.97], [98.75, 38.5], [98.85, 38.75], [98.75, 39.0], [98.97, 39.53], [99.5, 39.75]]], [[[96.25, 39.5], [96.47, 40.03], [97.0, 40.25], [97.25, 40.15], [97.5, 40.25], [97.75, 40.15], [98.0, 40.25], [98.53, 40.03], [98.75, 39.5], [98.53, 38.97], [98.0, 38.75], [97.75, 38.85], [97.5, 38.75], [97.25, 38.85], [97.0, 38.75], [96.47, 38.97], [96.25, 39.5]]]]}, "2021-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.97, 38.97], [96.75, 39.5], [96.97, 40.03], [97.5, 40.25], [97.75, 40.15], [98.0, 40.25], [98.53, 40.03], [98.75, 39.5], [98.53, 38.97], [98.0, 38.75], [97.75, 38.85], [97.5, 38.75], [96.97, 38.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.07590807880743}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.909343528453368}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.343268882387235, -10.830052279588699, -10.597450864653638, -11.503422067778502, -10.739276580545038, -12.401426449072972]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-9.839092724365003, -6.586816872539828, -6.68452212438001, -7.5931539760921964, -9.04233608504984, -10.732879855493707]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.967234448601045, 6.0947930029902375, 6.49213712666355, 5.6847583727836755, 5.0154179312749765, 4.859370545204385]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.325521546101527, 8.368185753006998, 9.07590807880743, 7.526577289750605, 6.234200294095302, 4.910778616252969]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4628654996265946, 1.8392536906754193, 1.9630847749415887, 1.7188889359832211, 1.489356716666467, 1.4134476441169848]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7911326475686642, 2.4071766616448103, 2.566474016061389, 2.2251981861585146, 1.7535018400903362, 1.478283214966839]}}