{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:42.889294", "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": "2024-Jul-16_to_2024-Jul-21_140.5_-7.0"}, "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": 2024070000527}, "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": "July 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2024"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 110330.84529169645}, "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": ["Indonesia", "Papua New Guinea"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Oceania"]}, "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": -7.0}, "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": 140.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "140.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 138.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[142.03, -5.97], [142.18, -6.32], [142.53, -6.47], [142.68, -6.82], [143.03, -6.97], [143.18, -7.32], [143.53, -7.47], [143.75, -8.0], [143.65, -8.25], [143.75, -8.5], [143.53, -9.03], [143.0, -9.25], [142.75, -9.15], [142.68, -9.18], [142.53, -9.53], [142.0, -9.75], [141.47, -9.53], [141.32, -9.18], [141.25, -9.15], [141.0, -9.25], [140.47, -9.03], [140.32, -8.68], [140.25, -8.65], [140.0, -8.75], [139.47, -8.53], [139.32, -8.18], [139.25, -8.15], [139.0, -8.25], [138.75, -8.15], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.97, -6.97], [138.32, -6.82], [138.47, -6.47], [138.88, -6.3], [138.75, -6.0], [138.97, -5.47], [139.5, -5.25], [139.75, -5.35], [140.0, -5.25], [140.5, -5.46], [141.0, -5.25], [141.53, -5.47], [141.68, -5.82], [142.03, -5.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.5, -6.75], [138.97, -6.53], [138.75, -6.0], [138.97, -5.47], [139.5, -5.25], [139.75, -5.35], [140.0, -5.25], [140.5, -5.46], [141.0, -5.25], [141.53, -5.47], [141.68, -5.82], [142.03, -5.97], [142.25, -6.5], [142.03, -7.03], [141.5, -7.25], [141.25, -7.15], [141.0, -7.25], [140.47, -7.03], [140.3, -6.63], [140.0, -6.75], [139.75, -6.65], [139.5, -6.75]]]]}, "2024-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.47, -6.47], [138.88, -6.3], [138.75, -6.0], [138.97, -5.47], [139.5, -5.25], [139.75, -5.35], [140.0, -5.25], [140.5, -5.46], [141.0, -5.25], [141.53, -5.47], [141.68, -5.82], [142.03, -5.97], [142.18, -6.32], [142.53, -6.47], [142.68, -6.82], [143.03, -6.97], [143.18, -7.32], [143.53, -7.47], [143.75, -8.0], [143.65, -8.25], [143.75, -8.5], [143.53, -9.03], [143.0, -9.25], [142.75, -9.15], [142.68, -9.18], [142.53, -9.53], [142.0, -9.75], [141.47, -9.53], [141.32, -9.18], [141.25, -9.15], [141.0, -9.25], [140.47, -9.03], [140.32, -8.68], [140.25, -8.65], [140.0, -8.75], [139.47, -8.53], [139.32, -8.18], [139.25, -8.15], [139.0, -8.25], [138.75, -8.15], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.97, -6.97], [138.32, -6.82], [138.47, -6.47]]]]}, "2024-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.47, -6.47], [138.88, -6.3], [138.75, -6.0], [138.97, -5.47], [139.5, -5.25], [139.75, -5.35], [140.0, -5.25], [140.5, -5.46], [141.0, -5.25], [141.53, -5.47], [141.68, -5.82], [142.03, -5.97], [142.18, -6.32], [142.53, -6.47], [142.68, -6.82], [143.03, -6.97], [143.18, -7.32], [143.53, -7.47], [143.75, -8.0], [143.65, -8.25], [143.75, -8.5], [143.53, -9.03], [143.0, -9.25], [142.75, -9.15], [142.68, -9.18], [142.53, -9.53], [142.0, -9.75], [141.47, -9.53], [141.32, -9.18], [141.25, -9.15], [141.0, -9.25], [140.47, -9.03], [140.32, -8.68], [140.25, -8.65], [140.0, -8.75], [139.47, -8.53], [139.32, -8.18], [139.25, -8.15], [139.0, -8.25], [138.75, -8.15], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.97, -6.97], [138.32, -6.82], [138.47, -6.47]]]]}, "2024-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.47, -6.47], [139.0, -6.25], [139.25, -6.35], [139.32, -6.32], [139.47, -5.97], [140.0, -5.75], [140.25, -5.85], [140.5, -5.75], [140.75, -5.85], [141.0, -5.75], [141.25, -5.85], [141.5, -5.75], [142.03, -5.97], [142.18, -6.32], [142.53, -6.47], [142.68, -6.82], [143.03, -6.97], [143.18, -7.32], [143.53, -7.47], [143.75, -8.0], [143.65, -8.25], [143.75, -8.5], [143.53, -9.03], [143.0, -9.25], [142.75, -9.15], [142.68, -9.18], [142.53, -9.53], [142.0, -9.75], [141.47, -9.53], [141.32, -9.18], [141.25, -9.15], [141.0, -9.25], [140.47, -9.03], [140.32, -8.68], [140.25, -8.65], [140.0, -8.75], [139.47, -8.53], [139.32, -8.18], [139.25, -8.15], [139.0, -8.25], [138.75, -8.15], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.97, -6.97], [138.32, -6.82], [138.47, -6.47]]]]}, "2024-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.97, -6.97], [138.5, -6.75], [139.03, -6.97], [139.25, -7.5], [139.03, -8.03], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.97, -6.97]]]]}, "2024-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.97, -6.97], [138.5, -6.75], [139.03, -6.97], [139.25, -7.5], [139.03, -8.03], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.97, -6.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.146734825656665}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5652726142259528}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.154397429895255, 23.276780275755243, 23.706836590788726, 23.89152112276639, 24.791965903240623, 24.898980112412346]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.593342919080726, 22.196731677683715, 23.15882213687354, 23.172627847676438, 24.791965903240623, 24.898980112412346]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4164700922157976, -1.9570685163437642, -1.5190143639337808, -1.256657890996013, -0.8529798682951082, -0.7665083710725753]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8657504565138083, -3.146734825656665, -2.139933993489194, -1.6916291494017628, -0.8529798682951082, -0.7665083710725753]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9831305385276337, -2.6719263168164114, -2.054996010759638, -1.6802646344205203, -1.2904460175832444, -1.189164533520576]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.612333487469389, -4.445333594116654, -2.8768803799271527, -2.342340223150164, -1.2904460175832444, -1.189164533520576]}}