| best_track_max_sustained_wind_speed |
Maximum sustained wind speed in meters per seconds as reported by the National Hurricane Center's Tropical Cyclone Best Track data product. |
m s-1 |
int |
-9999 |
0 to 155 |
1 |
| best_track_r34_ne |
In the north east quadrant, how far from the storm center do 34 knot winds exist as reported by the National Hurricane Center's Tropical Cyclone Best Track data product. |
km |
int |
-9999 |
0 to 3000 |
1 |
| best_track_r34_nw |
In the north west quadrant, how far from the storm center do 34 knot winds exist as reported by the National Hurricane Center's Tropical Cyclone Best Track data product. |
km |
int |
-9999 |
0 to 3000 |
1 |
| best_track_r34_se |
In the south east quadrant, how far from the storm center do 34 knot winds exist as reported by the National Hurricane Center's Tropical Cyclone Best Track data product. |
km |
int |
-9999 |
0 to 3000 |
1 |
| best_track_r34_sw |
In the south west quadrant, how far from the storm center do 34 knot winds exist as reported by the National Hurricane Center's Tropical Cyclone Best Track data product. |
km |
int |
-9999 |
0 to 3000 |
1 |
| best_track_storm_center_lat |
Latitude coordinate of the storm center at the given time as reported by the National Hurricane Center's Tropical Cyclone Best Track. Range is -90 .. 90. |
degrees_north |
float |
-9999 |
-90 to 90 |
1 |
| best_track_storm_center_lon |
Longitude coordinate of the storm center at the given time as reported by the National Hurricane Center's Tropical Cyclone Best Track data product. Range is -180 .. 180. |
degrees_east |
float |
-9999 |
-180 to 180 |
1 |
| best_track_storm_status |
The level of storm development as reported by the National Hurricane Center's Tropical Cyclone Best Track data product.:
0 = tropical depression
1 = tropical storm
2 = typhoon
3 = super typhoon
4 = tropical cyclone 5 = hurricane
6 = subtropical depression
7 = subtropical storm
8 = extratropical systems
9 = monsoon depression
10 = inland
11 = dissipating
12 = low
13 = tropical wave
14 = extrapolated
15 = unknown
16 = disturbance
17 = error |
1 |
byte |
-99 |
0 to 17 |
1 |
| epoch_time |
Timestamp coordinate is at the center of the -99 hr bin, at 6 hr resolution referenced by the historical Epoch reference date/time. The Epoch reference date/time corresponds to the first observation time window in the CYGNSS data record after the automatic gain control was turned off. Total number of timestamps in a file corresponds to one UTC day. This value is rounded to the nearest hour since leap seconds may have occurred making the number of hours since the start of the mission not exact. |
hours since 2018-08-01 00:00:00.000000000 |
int |
N/A |
N/A |
1 |
| lat |
Absolute latitude coordinate at the center of the bin, degrees_north, at 0.1 degree resolution. Range is 8 .. 23. |
degrees_north |
float |
N/A |
N/A |
1 |
| lon |
Absolute longitude coordinate at the center of the bin, degrees_east, at 0.1 degree resolution. Range is -107 .. -96. |
degrees_east |
float |
N/A |
N/A |
1 |
| num_winds |
The number of L2 wind speeds in grid cell. |
1 |
int |
-9999 |
1 to 100000 |
1 |
| num_wind_speed_tracks |
The number of L2 wind speed tracks in grid cell. |
1 |
int |
-9999 |
1 to 100000 |
1 |
| quality_status |
The quality status measures how well all samples in the 'time' dimension perform in inter-track comparison tests relative to the storm intensity:
-1 = Wind speeds were not computed
0 = Not enough data to detrmine status
1 = Poor quality
2 = Average quality
3 = High quality
|
1 |
short |
-9999 |
-1 to 3 |
1 |
| storm_centric_lat |
Relative latitude coordinate at the center of the bin, degrees_north, at 0.1 degree resolution. Range is -3.6 .. 3.6. |
degrees_north |
float |
N/A |
N/A |
1 |
| storm_centric_lon |
Relative longitude coordinate at the center of the bin, degrees_east, at 0.1 degree resolution. Range is -3.6 .. 3.6. |
degrees_east |
float |
N/A |
N/A |
1 |
| storm_centric_wind_speed |
Averaged CYGNSS L2 YSLF wind speed of samples in the bin over the spatial and temporal intervals specified by the bin's boundaries. Some wind speed tracks may be removed from averaging if they do not meet inter-track quality control standards. Winds speeds gridded relative to the storm_centeric_lat and storm_centeric_lon. |
m s-1 |
float |
-9999 |
0 to 100 |
1 |
| time |
Timestamp coordinate at the center of the -99 hr bin, at 6 hr resolution. The range length is unique to each storm. The length of storm RICK is 84 hours. |
hours since 2021-10-22 12:00:00.000000000 |
int |
N/A |
N/A |
1 |
| wind_averaging_status |
Wind speed averaging status based on the number of tracks used in the calcualtion. Everything with a value of 1 and lower are considered poor quality. Values:
-7 = Grid cell is located outside of the CYGNSS range
-6 = Grid cell is located near land
-5 = Three or more tracks with outliers, no close tracks, and high standard deviation
-4 = Three or more tracks with outliers and no close tracks
-3 = Three or more tracks with no outliers and high standard deviation
-2 = Two tracks with disagreement
0 = No data
1 = Only one track
2 = Two tracks with agreement
3 = Three or more tracks with no outliers and low standard deviation
4 = Three or more tracks with outliers and close tracks
|
1 |
short |
-9999 |
-7 to 4 |
1 |
| wind_speed |
Averaged CYGNSS L2 YSLF wind speed of samples in the bin over the spatial and temporal intervals specified by the bin's boundaries. Some wind speed tracks may be removed from averaging if they do not meet inter-track quality control standards. Wind speeds are output on a grid bound by geospatial_min_lat, geospatial_max_lat, geospatial_min_lon, and geospatial_max_lon. |
m s-1 |
float |
-9999 |
0 to 100 |
1 |