{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:06.893921", "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-21_to_2023-Mar-25_205.5_-22.0"}, "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": 2023030002205}, "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 21 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 25 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 138008.14639646682}, "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": ["Cook Islands"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["Pacific Ocean"]}, "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": -22.0}, "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": 205.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "205.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 202.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 208.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-156.25, -21.5], [-156.12, -21.2], [-156.25, -21.15], [-156.5, -21.25], [-156.75, -21.15], [-157.0, -21.25], [-157.25, -21.15], [-157.5, -21.25], [-158.03, -21.03], [-158.18, -20.68], [-158.53, -20.53], [-158.75, -20.0], [-158.65, -19.75], [-158.75, -19.5], [-158.53, -18.97], [-158.0, -18.75], [-157.47, -18.97], [-157.32, -19.32], [-157.25, -19.35], [-157.0, -19.25], [-156.75, -19.35], [-156.5, -19.25], [-156.25, -19.35], [-156.0, -19.25], [-155.75, -19.35], [-155.5, -19.25], [-155.25, -19.35], [-155.0, -19.25], [-154.47, -19.47], [-154.32, -19.82], [-154.25, -19.85], [-154.0, -19.75], [-153.75, -19.85], [-153.5, -19.75], [-152.97, -19.97], [-152.82, -20.32], [-152.75, -20.35], [-152.5, -20.25], [-151.97, -20.47], [-151.82, -20.82], [-151.47, -20.97], [-151.25, -21.5], [-151.35, -21.75], [-151.25, -22.0], [-151.35, -22.25], [-151.25, -22.5], [-151.47, -23.03], [-152.0, -23.25], [-152.43, -23.07], [-152.25, -23.5], [-152.35, -23.75], [-152.25, -24.0], [-152.35, -24.25], [-152.25, -24.5], [-152.47, -25.03], [-153.0, -25.25], [-153.53, -25.03], [-153.75, -24.5], [-153.65, -24.25], [-153.68, -24.18], [-154.03, -24.03], [-154.18, -23.68], [-154.25, -23.65], [-154.5, -23.75], [-155.03, -23.53], [-155.18, -23.18], [-155.53, -23.03], [-155.68, -22.68], [-156.03, -22.53], [-156.25, -22.0], [-156.15, -21.75], [-156.25, -21.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-156.03, -22.53], [-156.25, -22.0], [-156.03, -21.47], [-155.5, -21.25], [-155.25, -21.35], [-155.0, -21.25], [-154.75, -21.35], [-154.5, -21.25], [-154.25, -21.35], [-154.0, -21.25], [-153.75, -21.35], [-153.5, -21.25], [-153.25, -21.35], [-153.0, -21.25], [-152.47, -21.47], [-152.25, -22.0], [-152.35, -22.25], [-152.25, -22.5], [-152.46, -23.0], [-152.25, -23.5], [-152.35, -23.75], [-152.25, -24.0], [-152.35, -24.25], [-152.25, 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-23.25], [-152.53, -23.03], [-152.68, -22.68], [-152.75, -22.65], [-152.87, -22.7], [-152.75, -23.0], [-152.97, -23.53], [-153.5, -23.75], [-153.75, -23.65], [-154.0, -23.75], [-154.25, -23.65], [-154.5, -23.75], [-155.03, -23.53], [-155.25, -23.0], [-155.04, -22.5], [-155.18, -22.18], [-155.25, -22.15], [-155.5, -22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.490071703500007}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1079250795915612}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.035314712652735, 27.442760223500784, 27.279815295024605, 27.396671630954245, 27.176504244730268]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.25837506459328, 27.8569205483912, 27.85138494862298, 27.790423280289474, 27.418487032572443]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.132049410124336, 1.1851681264998073, 1.051520120427007, 1.0621796918973558, 1.1442893671828946]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2992760704638044, 1.490071703500007, 1.3801703495443007, 1.240857792619181, 1.32600164545903]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.42621197699312, 1.5572232562857395, 1.3767798648165845, 1.3799297420186925, 1.4611088685106859]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6746726089119404, 1.865231988346949, 1.6068109629207519, 1.664194492470852, 1.7013099266532965]}}