Arctic Ice Analysis

Stuff for ICE.HTML

Arctic Ice Analysis
to icehhome (without Persistence)

ROOS site(Ice ext, area); http://hpiers.obspm.fr (LOD, at bottom); hpiers,Polar motion (x,y,20/yr); IERS (LOD, Polar Motion,...)

IVS Analysis Center Onsala Space Observatory (OSO) [LOD/ENSO-MEI]

ΔLOD in JCurry, by Javier

Lime=Cause=10 series Black=Effect=17 series

CAUSES ------------------------------------------------------------------
MEI 1871-2017,POLAR M x,POLAR M y,POLAR M θ,POLAR M ρ=y,POLAR M x,y,
AO Combo,Geomagnetic Ind,PDO 1854-2017,NAO DJFM 1825-2016
EFFECTS -----------------------------------------------------------------
Arctic-roos mo,LOD Excess,N_03_extent,N_06_extent,N_09_extent,N_12_extent,
N_03_area,N_06_area,N_09_area,N_12_area,IceExt 1870-08,DJF,MAM,JJA,SON
HadCRUT4 NH,Aberdeen s.l.

References:
Yndestad, 2003 (Arctic 18.6 yr); Yndestad et al., 2004 (Faroer/Kola); Bogi Hansen et al, 2017 (Faroer Channels);
Jevrejeva et al, 2003 (Baltic Sea Ice Spectrum); Qu-etal-2014 (Sun-AO); Ottersen et al, 2003 (sp. peaks 8 to 14 yr);
ludecke et al., 2013 (Spectra long-term Europ. Temps); Na et al., 2013 (LOD); Na et al., 2016 (LOD)
Jacoby et al., 2004 (Spectra PDO and 400 yr oak tree rings); •Verdon & Franks, 2004 (ENSO-PDO interactions over 400 yrs);

Spectral Massima (Libre Office sheet,.ods)

Plots, Figures

00readme.html
All toghether (pdf) (png) from Libre Office sheet

Causes and Effects (pdf) (png) from Libre Office sheet

Causes and Effects (%) (pdf) (png) from Libre Office sheet

Causes only (pdf) (png) from Libre Office sheet

Effects only (pdf) (png) from Libre Office sheet

Ice Extent 1870-2008 (pdf) (png) and MEM Spectrum http://arctic.atmos.uiuc.edu/SEAICE/

Ice Extent DJF (pdf) (png) and MEM Spectrum

Ice Extent MAM (pdf) (png) and MEM Spectrum

Ice Extent JJA (pdf) (png) and MEM Spectrum

Ice Extent SON (pdf) (png) and MEM Spectrum

Excess of LOD (pdf) (png) and MEM Spectrum Na 2013 peaks

HadCRUT4 NH (pdf) (png) and MEM Spectrum T. Anomaly 1850-2017/11

Aberdeen Sea Level (pdf) (png) and LOMB Spectrum Scotland

Polar motion r (pdf) (png) and MEM Spectrum Detrended

Polar motion t (pdf) (png) and MEM Spectrum Detrended

Polar motion x (pdf) (png) and MEM Spectrum Detrended

Polar motion y (pdf) (png) and MEM Spectrum Detrended

Polar motion x,y (pdf) (png) and MEM Spectrum 1900-2017, 20 measures/year

Polar motion x,y (pdf) (png) MAP 1900-2017, 20 and 1 measures/year

All Polar motion (pdf) (png) and MEM Spectra Detrended

Monthly Ice Ext 78-17 (pdf) (png) and MEM Spectrum http://arctic-roos.org/

Monthly Ice Ext 78-17 (pdf) (png) and MEM Spectrum and linear fits

Single month: Mar (pdf) (png) and MEM Spectrum Extent/Area

Single month: Jun (pdf) (png) and MEM Spectrum Extent/Area

Single month: Sep (pdf) (png) and MEM Spectrum Extent/Area

Single month: Dec (pdf) (png) and MEM Spectrum Extent/Area

Monthly MEI Index (pdf) (png) and MEM Spectrum 1871-2017

Yearly MEI Index (pdf) (png) and MEM Spectrum 1871-2017

ENSO MEM (pdf) (png) MEM Spectrum All Niño regions, Monthly

Arctic Oscillation AO (pdf) (png) MEM Spectrum Monthly Values

AO Combo (pdf) (png) MEM Spectrum ao9902.txt+ao1711.txt

AA Index (pdf) (png) MEM Spectrum Monthly Values 1868-2015

NAO DJFM Index (pdf) (png) MEM Spectrum Yearly Values 1825-2016

NAO Monthly Index (pdf) (png) MEM Spectrum 1865-2017/6

PDO Index (pdf) (png) MEM Spectrum Monthly Values 1854-2017/11

Comp LOD-MEI (pdf) (png) Yearly Values

Comp LOD-SSN (pdf) (png) Yearly Values

Comp MEI-SSN (pdf) (png) Yearly Values

---- ---- ----- ----

Data

00readme.html

Ice Extent 1870-2008 .txt

Ice Extent YEAR .out MEM spectrum

Ice Extent DJF .out MEM spectrum

Ice Extent MAM .out MEM spectrum

Ice Extent JJA .out MEM spectrum

Ice Extent SON .out MEM spectrum

Excess of LOD .txt Length of Day (LOD)

Excess of LOD MEM .out MEM Spectrum detrended

Excess of LOD LOMB .out MEM Spectrum

HadCRUT4 NH .dat 1850-2017/11

HadCRUT4 NH MEM .out MEM Spectrum

Aberdeen s.l. .txt Scotland

Aberdeen LOMB .out LOMB Spectrum

Polar motion .txt yr,x,y,r,θ

Polar m r MEM .out MEM Spectrum Detrended

Polar m t MEM .out MEM Spectrum Detrended

Polar m x MEM .out MEM Spectrum Detrended

Polar m y MEM .out MEM Spectrum Detrended

Polar m y MEM .out MEM Spectrum Detrended

Polar m y MEM .out MEM Spectrum Detrended

Polar mo. x,y .txt 1900-2017, 20 measures/year EOPC

Polar mo. x MEM .out MEM Spectrum EOPC

Polar m y MEM .out MEM Spectrum EOPC

Polar map x,y .txt 1900-2017, yearly ave. EOPCM

Monthly Roos Extent 78-17 .txt original

Monthly Ice Ext 78-17 .txt used

Monthly Ice Ext MEM .out MEM spectrum

fit/test Monthly Ice Ext .app fit/test comp. Student Test

Single month: Jan .txt Extent/Area

Single month: Feb .txt Extent/Area

Single month: Mar .txt Extent/Area

Single month: Mar MEM .out Extent

Single month: Mar MEM .out Area

Single month: Apr .txt Extent/Area

Single month: May .txt Extent/Area

Single month: Jun .txt Extent/Area

Single month: Jun MEM .out Extent

Single month: Jun MEM .out Area

Single month: Jul .txt Extent/Area

Single month: Aug .txt Extent/Area

Single month: Sep .txt Extent/Area

Single month: Sep MEM .out Extent

Single month: Sep MEM .out Area

Single month: Oct .txt Extent/Area

Single month: Nov .txt Extent/Area

Single month: Dec .txt Extent/Area

Single month: Dec LOMB .out Extent

Single month: Mar LOMB .out Area

Monthly MEI Index .txt composed by mei-exte.txt & mei-5017.txt

Monthly MEI MEM .out MEM Spectrum of composed

Yearly MEI Index .txt composed by mei-yr-exte.txt & mei-yr-5017.txt

Yearly MEI MEM .out MEM Spectrum of composed

ENSO 1.2 MEM .out Nino 1.2 region

ENSO 3 MEM .out Nino 3 region

ENSO 3.4 MEM .out Nino 3.4 region

ENSO 4 MEM .out Nino 4 region

Arctic Oscillation AO .txt 1950-2017/11

AO MEM mo .out Periods in months

AO MEM yr .out Periods in years note a 135.8 yrs peak

AO Combo .txt 1899-2017/11 ao9902.txt+ao1711.txt

AO Combo MEM mo .out Periods in months

AO Combo MEM yr .out Periods in years

AA Geomagnetic Index .txt 1868-2015

AA MEM mo .out Periods in months

AA MEM yr .out Periods in years

NAO Winter DJFM Index .txt 1825-2016

NAO Winter MEM .out

NAO Monthly Index .txt 1865-2017/6

NAO Monthly MEM .out

PDO Index .txt 1854-2017

PDO MEM .out

Plots, Figures
00readme.html
All toghether	(pdf) (png)		from Libre Office sheet
Causes and Effects	(pdf) (png)		from Libre Office sheet
Causes and Effects (%)	(pdf) (png)		from Libre Office sheet
Causes only	(pdf) (png)		from Libre Office sheet
Effects only	(pdf) (png)		from Libre Office sheet
Ice Extent 1870-2008	(pdf) (png)	and MEM Spectrum	http://arctic.atmos.uiuc.edu/SEAICE/
Ice Extent DJF	(pdf) (png)	and MEM Spectrum
Ice Extent MAM	(pdf) (png)	and MEM Spectrum
Ice Extent JJA	(pdf) (png)	and MEM Spectrum
Ice Extent SON	(pdf) (png)	and MEM Spectrum
Excess of LOD	(pdf) (png)	and MEM Spectrum	Na 2013 peaks
HadCRUT4 NH	(pdf) (png)	and MEM Spectrum	T. Anomaly 1850-2017/11
Aberdeen Sea Level	(pdf) (png)	and LOMB Spectrum	Scotland
Polar motion r	(pdf) (png)	and MEM Spectrum	Detrended
Polar motion t	(pdf) (png)	and MEM Spectrum	Detrended
Polar motion x	(pdf) (png)	and MEM Spectrum	Detrended
Polar motion y	(pdf) (png)	and MEM Spectrum	Detrended
Polar motion x,y	(pdf) (png)	and MEM Spectrum	1900-2017, 20 measures/year
Polar motion x,y	(pdf) (png)	MAP	1900-2017, 20 and 1 measures/year
All Polar motion	(pdf) (png)	and MEM Spectra	Detrended
Monthly Ice Ext 78-17	(pdf) (png)	and MEM Spectrum	http://arctic-roos.org/
Monthly Ice Ext 78-17	(pdf) (png)	and MEM Spectrum	and linear fits
Single month: Mar	(pdf) (png)	and MEM Spectrum	Extent/Area
Single month: Jun	(pdf) (png)	and MEM Spectrum	Extent/Area
Single month: Sep	(pdf) (png)	and MEM Spectrum	Extent/Area
Single month: Dec	(pdf) (png)	and MEM Spectrum	Extent/Area
Monthly MEI Index	(pdf) (png)	and MEM Spectrum	1871-2017
Yearly MEI Index	(pdf) (png)	and MEM Spectrum	1871-2017
ENSO MEM	(pdf) (png)	MEM Spectrum	All Niño regions, Monthly
Arctic Oscillation AO	(pdf) (png)	MEM Spectrum	Monthly Values
AO Combo	(pdf) (png)	MEM Spectrum	ao9902.txt+ao1711.txt
AA Index	(pdf) (png)	MEM Spectrum	Monthly Values 1868-2015
NAO DJFM Index	(pdf) (png)	MEM Spectrum	Yearly Values 1825-2016
NAO Monthly Index	(pdf) (png)	MEM Spectrum	1865-2017/6
PDO Index	(pdf) (png)	MEM Spectrum	Monthly Values 1854-2017/11
Comp LOD-MEI	(pdf) (png)		Yearly Values
Comp LOD-SSN	(pdf) (png)		Yearly Values
Comp MEI-SSN	(pdf) (png)		Yearly Values
----	----	-----	----
Data
00readme.html
Ice Extent 1870-2008	.txt
Ice Extent YEAR	.out	MEM spectrum
Ice Extent DJF	.out	MEM spectrum
Ice Extent MAM	.out	MEM spectrum
Ice Extent JJA	.out	MEM spectrum
Ice Extent SON	.out	MEM spectrum
Excess of LOD	.txt	Length of Day (LOD)
Excess of LOD MEM	.out	MEM Spectrum	detrended
Excess of LOD LOMB	.out	MEM Spectrum
HadCRUT4 NH	.dat	1850-2017/11
HadCRUT4 NH MEM	.out	MEM Spectrum
Aberdeen s.l.	.txt	Scotland
Aberdeen LOMB	.out	LOMB Spectrum
Polar motion	.txt	yr,x,y,r,θ
Polar m r MEM	.out	MEM Spectrum	Detrended
Polar m t MEM	.out	MEM Spectrum	Detrended
Polar m x MEM	.out	MEM Spectrum	Detrended
Polar m y MEM	.out	MEM Spectrum	Detrended
Polar m y MEM	.out	MEM Spectrum	Detrended
Polar m y MEM	.out	MEM Spectrum	Detrended
Polar mo. x,y	.txt	1900-2017, 20 measures/year	EOPC
Polar mo. x MEM	.out	MEM Spectrum	EOPC
Polar m y MEM	.out	MEM Spectrum	EOPC
Polar map x,y	.txt	1900-2017, yearly ave.	EOPCM
Monthly Roos Extent 78-17	.txt	original
Monthly Ice Ext 78-17	.txt	used
Monthly Ice Ext MEM	.out	MEM spectrum
fit/test Monthly Ice Ext	.app	fit/test comp.	Student Test
Single month: Jan	.txt	Extent/Area
Single month: Feb	.txt	Extent/Area
Single month: Mar	.txt	Extent/Area
Single month: Mar MEM	.out	Extent
Single month: Mar MEM	.out	Area
Single month: Apr	.txt	Extent/Area
Single month: May	.txt	Extent/Area
Single month: Jun	.txt	Extent/Area
Single month: Jun MEM	.out	Extent
Single month: Jun MEM	.out	Area
Single month: Jul	.txt	Extent/Area
Single month: Aug	.txt	Extent/Area
Single month: Sep	.txt	Extent/Area
Single month: Sep MEM	.out	Extent
Single month: Sep MEM	.out	Area
Single month: Oct	.txt	Extent/Area
Single month: Nov	.txt	Extent/Area
Single month: Dec	.txt	Extent/Area
Single month: Dec LOMB	.out	Extent
Single month: Mar LOMB	.out	Area
Monthly MEI Index	.txt	composed by mei-exte.txt &	mei-5017.txt
Monthly MEI MEM	.out	MEM Spectrum of composed
Yearly MEI Index	.txt	composed by mei-yr-exte.txt &	mei-yr-5017.txt
Yearly MEI MEM	.out	MEM Spectrum of composed
ENSO 1.2 MEM	.out	Nino 1.2 region
ENSO 3 MEM	.out	Nino 3 region
ENSO 3.4 MEM	.out	Nino 3.4 region
ENSO 4 MEM	.out	Nino 4 region
Arctic Oscillation AO	.txt	1950-2017/11
AO MEM mo	.out	Periods in months
AO MEM yr	.out	Periods in years	note a 135.8 yrs peak
AO Combo	.txt	1899-2017/11	ao9902.txt+ao1711.txt
AO Combo MEM mo	.out	Periods in months
AO Combo MEM yr	.out	Periods in years
AA Geomagnetic Index	.txt	1868-2015
AA MEM mo	.out	Periods in months
AA MEM yr	.out	Periods in years
NAO Winter DJFM Index	.txt	1825-2016
NAO Winter MEM	.out
NAO Monthly Index	.txt	1865-2017/6
NAO Monthly MEM	.out
PDO Index	.txt	1854-2017
PDO MEM	.out

Code
ice.bon, ice-djf.bon, ice-mam.bon, ice-jja.bon, ice-son.bon, eop1840.bon,
polarr.bon, polart.bon, polarx.bon, polary.bon, ice-roos.bon, ice-ross-fit.bon,
03.bon, 06.bon, 09.bon, 12.bon,
enso-mo-mem.bon, ao.bon, aa.bon, nao17-djfm.bon, nao-mo.bon,
hc4nh.bon, pdo.bon, aberdeen.bon, eopc.bon, motion.bon,
date12.f, pdox.f, ao.f, motion.f,

Page Written: November 28, 2017, Last Updated: