Climate Variability Diagnostics Package

Methodology and Definitions

Namelists: Input | Derived
Created: Wed Jul 1 03:54:39 PM MDT 2026
CVDP Version 6.1.0
Trend Removal:
Referencea trend removal method is not employed.
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Simulationsa trend removal method is not employed.
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Individual Member Mode

CVDP.py test data

Climatological Averages

SST	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
TAS	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PSL	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PR	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
SICONC NH	DJF	JFM	MAM	JJA	JAS	SON	ANN
SICONC SH	DJF	JFM	MAM	JJA	JAS	SON	ANN
ZOS	DJF	JFM	MAM	JJA	JAS	SON	ANN

Standard Deviations

SST	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
TAS	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PSL	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PR	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
SICONC NH	DJF	JFM	MAM	JJA	JAS	SON	ANN
SICONC SH	DJF	JFM	MAM	JJA	JAS	SON	ANN
ZOS	DJF	JFM	MAM	JJA	JAS	SON	ANN

Linear Trends

SST	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
TAS	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PSL	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PR	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
SICONC NH	DJF	JFM	MAM	JJA	JAS	SON	ANN
SICONC SH	DJF	JFM	MAM	JJA	JAS	SON	ANN
ZOS	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias

Coupled Modes of Variability

ENSO

Spatial Composites

El Niño - La Niña SST/TAS/PSL JJA⁰ SON⁰ DJF¹ MAM¹	El Niño - La Niña PR JJA⁰ SON⁰ DJF¹ MAM¹	El Niño - La Niña ZOS JJA⁰ SON⁰ DJF¹ MAM¹
El Niño SST/TAS/PSL JJA⁰ SON⁰ DJF¹ MAM¹	El Niño PR JJA⁰ SON⁰ DJF¹ MAM¹	El Niño ZOS JJA⁰ SON⁰ DJF¹ MAM¹
La Niña SST/TAS/PSL JJA⁰ SON⁰ DJF¹ MAM¹	La Niña PR JJA⁰ SON⁰ DJF¹ MAM¹	La Niña ZOS JJA⁰ SON⁰ DJF¹ MAM¹
El Niño Hovmöller	La Niña Hovmöller

Niño3.4

Timeseries

Monthly Std. Dev.

Power Spectra

Wavelet

Autocorrelation

Running Standard Deviation

AMV

Regr: SST TAS PR ZOS

Timeseries

Power Spectra

Regr LP: SST TAS PR ZOS

Timeseries

PDV

Regr: SST

Indiv
Bias

TAS

Indiv
Bias

Indiv
Bias

ZOS

Indiv
Bias

Timeseries

Power Spectra

IPV

Standard: SST TAS PR ZOS

Timeseries

Power Spectra

Henley: SST

Indiv
Bias

TAS PR ZOS

Timeseries

Power Spectra

AMOC

Means

Indiv
Bias

Standard Deviations

Indiv
Bias

Patterns

Indiv
Bias

Timeseries

SST/TAS Regressions

Indiv
Bias

Spectra

AMV/AMOC Lag Correlations

Atmospheric Modes of Variability

SO	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
SO	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN
NAM	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
NAM	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN
NAO	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
NAO	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN
SAM	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
SAM	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN
PNA	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PNA	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN
NPO	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
NPO	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN
PSA1	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PSA1	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN
PSA2	Patterns	DJF Indiv Bias	JFM Indiv Bias	MAM Indiv Bias	JJA Indiv Bias	JAS Indiv Bias	SON Indiv Bias	ANN Indiv Bias
PSA2	Timeseries	DJF	JFM	MAM	JJA	JAS	SON	ANN

Global Timeseries

SST	DJF	JFM	MAM	JJA	JAS	SON	ANN
TAS	DJF	JFM	MAM	JJA	JAS	SON	ANN
PR	DJF	JFM	MAM	JJA	JAS	SON	ANN
PR (land-only)	DJF	JFM	MAM	JJA	JAS	SON	ANN

Regional Timeseries

Atlantic SST Meridional Mode Timeseries Patterns	Atlantic Niño SST Timeseries Patterns	North Atlantic SST Timeseries Patterns	Tropical North Atlantic SST Timeseries Patterns	Tropical South Atlantic SST Timeseries Patterns
niño1+2 SST Timeseries Patterns	niño3 SST Timeseries Patterns	niño3.4 SST Timeseries Patterns	niño4 SST Timeseries Patterns
North Pacific PSL Index (NPI) Timeseries Patterns Indiv Bias	North Pacific SST Meridional Mode Timeseries Patterns	South Pacific SST Meridional Mode Timeseries Patterns
Indian Ocean SST Dipole Timeseries Patterns	Tropical Indian Ocean SST Timeseries Patterns	Southern Ocean SST Timeseries Patterns

Sea Ice Extent Timeseries

NH	DJF	JFM	MAM	JJA	JAS	SON	ANN
NH	Feb	Mar	Sep	Oct	Monthly	Monthly Anomalies	Climatology
SH	DJF	JFM	MAM	JJA	JAS	SON	ANN
SH	Feb	Mar	Sep	Oct	Monthly	Monthly Anomalies	Climatology