Hurricane Sally (2020) Shifts the Ocean Thermal Structure across the Inner Core during Rapid Intensification over the Shelf
https://journals.ametsoc.org/view/journals/phoc/52/11/JPO-D-22-0025.1.xml
(With Supplementary Materials)
- Materials and methods
Tropical cyclone data "Data for Hurricane Sally were acquired from the best-track file as provided by the National Oceanic and Atmospheric Administration (NOAA) National Hurricane Center (ftp://ftp.nhc.noaa.gov/atcf/btk/)."
Clicking on that site will not work.
This site has data: https://ftp.nhc.noaa.gov/atcf/btk/
But it is all from 2023. That is for 'current' best track.
So a researcher needs to know where the best-track files are. Here: https://www.nhc.noaa.gov/gis/archive_besttrack.php
Choose the year, 2020. Click Show Data. Find Hurricane Sally, click on it.
GIS cumulative wind swath, track, points, wind radii for AL192020:
al192020_best_track.kmz
al192020_best_track.zip
al192020_windswath.kmz
HURDAT2
https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2022-050423.txt
You can just open the kmz's in Google Earth.
The search url for Hurricane Sally 2020 is: https://www.nhc.noaa.gov/gis/archive_besttrack_results.php?id=al19&year=2020&name=Hurricane%20SALLY
And the files are
https://www.nhc.noaa.gov/gis/best_track/al192020_best_track.kmz
https://www.nhc.noaa.gov/gis/best_track/al192020_best_track.zip
https://www.nhc.noaa.gov/gis/best_track/al192020_windswath.kmz
The .zip file has shapefiles with the same information as the kmz's.
Next steps...
Check Google Earth
Python library:
- https://pypi.org/project/hurdat2parser
- packages pyshp, geojson, and matplotlib will be downloaded as dependencies
from tkinter import *
import hurdat2parser as hd2
print(dir(hd2))
#Try the download one
atl = hd2.Hurdat2(basin="atl")
#atl = hd2.Hurdat2("hurdat2-1851-2022-050423.txt")
print(atl)
print(atl[2020])
print(atl["sally"])
sally = atl["sally"]
#lat/lon of path
sally.gps
#highest maximum sustained wind-speed
sally.maxwind
#lowest recorded pressure
sally.minmslp
print(sally.maxwind_mslp)
print(sally.minmslp_wind)
#sally.track_map()
sally.info()
print(sally.duration_TC)
print(sally.duration_TS)
print(sally.duration_HU)
print(sally.duration_MHU)
print(sally.track_map.__doc__)
NOAA Hurricane Tracks
- Wind speed and pressure readings are also available. By “sharing” search results, the track and data can be saved to a link.
SECOORA
HURDAT2
wget https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2022-050423.txt
This dataset (known as Atlantic HURDAT2) has a comma-delimited, text format with six-hourly information on the location, maximum winds, central pressure, and (beginning in 2004) size of all known tropical cyclones and subtropical cyclones. The original HURDAT database has been retired.
Other Python packages
tropycal is a larger package with lots of dependencies.