Teleconnection indices (s2stools.indices)
Download a couple of teleconnections directly from the web into xarray objects.
Sources: * QBO https://www.geo.fu-berlin.de/met/ag/strat/produkte/qbo/qbo.dat * MJO https://iridl.ldeo.columbia.edu/SOURCES/.BoM/.MJO/.RMM/.phase/T+exch+table-+text+text+skipanyNaN+-table+.html * ENSO https://psl.noaa.gov/gcos_wgsp/Timeseries/Data/nino34.long.anom.data
Functions
- s2stools.indices.download_enso(interp_daily=False) Dataset
Download ENSO 3.4 index from NOAA: “https://psl.noaa.gov/gcos_wgsp/Timeseries/Data/nino34.long.anom.data”
- Parameters:
interp_daily (bool) – data comes at monthly resolution, if True interpolate to daily. Defaults to False.
- Returns:
da – El Nino Southern Oscillation 3.4 index
- Return type:
xr.DataArray
- s2stools.indices.download_indices(enso=True, mjo=True, u60=False, qbo=True)
Download a couple of teleconnection indices.
- Parameters:
enso (bool)
mjo (bool)
u60 (bool)
qbo (bool)
- Returns:
ds
- Return type:
xr.Dataset
See also
- s2stools.indices.download_mjo()
Download MJO phase and amplitude from Columbia university: “https://iridl.ldeo.columbia.edu/SOURCES/.BoM/.MJO/.RMM/.phase/”
- Returns:
da_phase, da_phase – Madden Julian Oscillation Realtime Multivariate Index: Phase, Amplitude
- Return type:
[xr.DataArray, xr.DataArray]
- s2stools.indices.download_qbo()
Download Quasi-Biennial-Oscillation wind data from FU Berlin: “https://www.geo.fu-berlin.de/met/ag/strat/produkte/qbo/qbo.dat”
- Returns:
ds – Quasi-Biennial Oscillation
- Return type:
xr.DataArray
See also
- s2stools.indices.get_qbo()
Backward compatibility for download_qbo
- Returns:
ds – Quasi-Biennial Oscillation
- Return type:
xr.DataArray
Warning
Deprecated since version 0.3.0: Use
download_qbo()for consistency with mjo, enso
- s2stools.indices.nao() DataArray
Downloading the North Atlantic Oscillation index provided by NCEP.
- Returns:
nao_index
- Return type:
xr.DataArray
References
https://ftp.cpc.ncep.noaa.gov/cwlinks/norm.daily.nao.index.b500101.current.ascii