{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:11.674613", "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": "2012-Dec-27_to_2013-Jan-06_91.0_30.0"}, "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": 2012120002731}, "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 27 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 06 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 11}, "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": 69703.75003647142}, "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": ["Tibetan-Plateau"]}, "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": 30.0}, "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": 91.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "91.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 87.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 91.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[90.47, 28.97], [90.25, 29.5], [90.47, 30.03], [91.0, 30.25], [91.53, 30.03], [91.75, 29.5], [91.53, 28.97], [91.0, 28.75], [90.47, 28.97]]], [[[88.5, 31.25], [88.75, 31.15], [89.0, 31.25], [89.25, 31.15], [89.5, 31.25], [90.03, 31.03], [90.25, 30.5], [90.15, 30.25], [90.25, 30.0], [90.03, 29.47], [89.5, 29.25], [89.25, 29.35], [89.0, 29.25], [88.7, 29.38], [88.53, 28.97], [88.0, 28.75], [87.47, 28.97], [87.25, 29.5], [87.47, 30.03], [87.88, 30.2], [87.75, 30.5], [87.97, 31.03], [88.5, 31.25]]]]}, "2012-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.35, 29.75], [87.25, 30.0], [87.47, 30.53], [87.82, 30.68], [87.85, 30.75], [87.75, 31.0], [87.97, 31.53], [88.5, 31.75], [88.75, 31.65], [89.0, 31.75], [89.25, 31.65], [89.5, 31.75], [90.03, 31.53], [90.18, 31.18], [90.53, 31.03], [90.68, 30.68], [90.75, 30.65], [91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.65, 29.75], [91.75, 29.5], [91.53, 28.97], [91.0, 28.75], [90.75, 28.85], [90.5, 28.75], [90.25, 28.85], [90.18, 28.82], [90.15, 28.75], [90.25, 28.5], [90.03, 27.97], [89.5, 27.75], [88.97, 27.97], [88.82, 28.32], [88.5, 28.46], [88.0, 28.25], [87.47, 28.47], [87.25, 29.0], [87.35, 29.25], [87.25, 29.5], [87.35, 29.75]]]]}, "2012-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.35, 29.75], [87.25, 30.0], [87.47, 30.53], [87.82, 30.68], [87.85, 30.75], [87.75, 31.0], [87.97, 31.53], [88.5, 31.75], [88.75, 31.65], [89.0, 31.75], [89.25, 31.65], [89.5, 31.75], [90.03, 31.53], [90.18, 31.18], [90.53, 31.03], [90.68, 30.68], [90.75, 30.65], [91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.65, 29.75], [91.75, 29.5], [91.53, 28.97], [91.0, 28.75], [90.75, 28.85], [90.5, 28.75], [90.25, 28.85], [90.18, 28.82], [90.15, 28.75], [90.25, 28.5], [90.03, 27.97], [89.5, 27.75], [88.97, 27.97], [88.82, 28.32], [88.5, 28.46], [88.0, 28.25], [87.47, 28.47], [87.25, 29.0], [87.35, 29.25], [87.25, 29.5], [87.35, 29.75]]]]}, "2012-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.35, 29.75], [87.25, 30.0], [87.47, 30.53], [87.82, 30.68], [87.85, 30.75], [87.75, 31.0], [87.97, 31.53], [88.5, 31.75], [88.75, 31.65], [89.0, 31.75], [89.25, 31.65], [89.5, 31.75], [90.03, 31.53], [90.18, 31.18], [90.53, 31.03], [90.68, 30.68], [90.75, 30.65], [91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.65, 29.75], [91.75, 29.5], [91.53, 28.97], [91.0, 28.75], [90.75, 28.85], [90.68, 28.82], [90.53, 28.47], [90.18, 28.32], [90.03, 27.97], [89.5, 27.75], [88.97, 27.97], [88.82, 28.32], [88.5, 28.46], [88.0, 28.25], [87.47, 28.47], [87.25, 29.0], [87.35, 29.25], [87.25, 29.5], [87.35, 29.75]]]]}, "2012-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.97, 29.53], [89.5, 29.75], [89.75, 29.65], [90.0, 29.75], [90.3, 29.63], [90.47, 30.03], [91.0, 30.25], [91.53, 30.03], [91.75, 29.5], [91.53, 28.97], [91.0, 28.75], [90.7, 28.88], [90.53, 28.47], [90.18, 28.32], [90.03, 27.97], [89.5, 27.75], [88.97, 27.97], [88.75, 28.5], [88.85, 28.75], [88.75, 29.0], [88.97, 29.53]]]]}, "2013-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.97, 29.53], [89.5, 29.75], [89.75, 29.65], [90.0, 29.75], [90.3, 29.63], [90.35, 29.75], [90.25, 30.0], [90.47, 30.53], [91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.65, 29.75], [91.75, 29.5], [91.53, 28.97], [91.0, 28.75], [90.7, 28.88], [90.53, 28.47], [90.18, 28.32], [90.03, 27.97], [89.5, 27.75], [88.97, 27.97], [88.75, 28.5], [88.85, 28.75], [88.75, 29.0], [88.97, 29.53]]]]}, "2013-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.5, 29.75], [90.03, 29.53], [90.25, 29.0], [90.15, 28.75], [90.25, 28.5], [90.03, 27.97], [89.5, 27.75], [88.97, 27.97], [88.75, 28.5], [88.85, 28.75], [88.75, 29.0], [88.97, 29.53], [89.5, 29.75]]], [[[91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.65, 29.75], [91.75, 29.5], [91.53, 28.97], [91.0, 28.75], [90.47, 28.97], [90.25, 29.5], [90.35, 29.75], [90.25, 30.0], [90.47, 30.53], [91.0, 30.75]]]]}, "2013-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.53, 29.47], [91.0, 29.25], [90.47, 29.47], [90.25, 30.0], [90.47, 30.53], [91.0, 30.75]]]]}, "2013-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.53, 29.47], [91.0, 29.25], [90.47, 29.47], [90.25, 30.0], [90.47, 30.53], [91.0, 30.75]]]]}, "2013-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.53, 29.47], [91.0, 29.25], [90.47, 29.47], [90.25, 30.0], [90.47, 30.53], [91.0, 30.75]]]]}, "2013-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.0, 30.75], [91.53, 30.53], [91.75, 30.0], [91.53, 29.47], [91.0, 29.25], [90.47, 29.47], [90.25, 30.0], [90.47, 30.53], [91.0, 30.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.160068071556054}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.165423024036422}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-4.725592357665903, -3.7551867744927563, -3.215176509838386, -1.5857618184757598, -2.120268472496093, -2.6750608188155525, -2.705866209963233, -5.168879858372861, -3.108264289910892, -5.583894964607282, -5.921719387547455]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.527503501241597, 1.763113409086941, 1.5050688582420548, 3.202057562539437, 1.336997610453011, 0.646789556012493, 0.5759073858613988, -5.168879858372861, -3.108264289910892, -5.583894964607282, -5.921719387547455]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.197267547682576, 5.2068056421930695, 5.792246096361652, 7.521468974272208, 6.0266559292819295, 6.247258462945604, 6.2330915334377295, 6.662069338590015, 9.228201654766394, 6.874393337329707, 6.586996278625804]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.7933097419259525, 9.577178416551476, 10.121920110708345, 11.160068071556054, 6.897336897181788, 6.876170539576151, 8.717142821735195, 6.662069338590015, 9.228201654766394, 6.874393337329707, 6.586996278625804]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3866352591608497, 1.3911115045719713, 1.4957538823475593, 1.9198058578994255, 1.5083377404165241, 1.509070911877558, 1.49280823717614, 1.378108586500891, 1.934932773704593, 1.5217128388255547, 1.4940681398901858]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5130200894988142, 1.983737035186303, 2.0593948531975887, 2.447874692020864, 1.8443467412388355, 1.8015844974998487, 1.7823743611267258, 1.378108586500891, 1.934932773704593, 1.5217128388255547, 1.4940681398901858]}}