Arctic clouds from CloudSat/CALIOP (R04, 2006-present)

Jen Kay (jenkay at ucar dot edu), last updated 4-14-2011

Calculation details are here.

 

1x1 Degree Monthly/Seasonal/Annual Zonal Mean Cloud Fraction:

Radar only movie

Radar+lidar movie

Individual months

 

climatology (June 2006 - December 2010)

Radar only: MAM, JJA, SON, DJF, ANN

Radar+lidar: MAM, JJA, SON, DJF, ANN

 

2x2 Degree Seasonal Cloud Fraction Maps (radar only):

JJA_06: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_06: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_06: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_07: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_07: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_07: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_07: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_08: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_08: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_08: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_08: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_09: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_09: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_09: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_09: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_10: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_10: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_10: low, uniqlow, mid, high, uniqhigh, thick30, total

 

climatology (June 2006 - December 2010)

MAM_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

ANN_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

 

2x2 Degree Seasonal Cloud Fraction Maps (radar+lidar):

JA_06_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_06_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_06_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_07_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_07_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_07_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_07_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_08_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_08_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_08_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_08_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_09_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_09_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_09_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_09_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

MAM_10_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_10_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_10_RL: low, uniqlow, mid, high, uniqhigh, thick30, total

 

climatology (June 2006 - December 2010)

MAM_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

JJA_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

SON_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

DJF_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

ANN_climo: low, uniqlow, mid, high, uniqhigh, thick30, total

 

NOTES:

The 2B-GEOPROF-LIDAR files have periods with no Arctic data. I have manually removed these “bad” data granules from the analysis.  For example, there are no data granules with useful lidar information in June 2006. 

 

Time Series:

Arctic-wide (66-82 N): radar, radar+lidar, climo

Western Pacific Arctic Ocean (70-82 N, 120-180 W): radar, radar+lidar, climo

Eastern Pacific Arctic Ocean (70-82 N, 120-180 E): radar, radar+lidar, climo

 

Plots at Arctic Observatories:

Barrow, Atqasuk, Tiksi, SHEBA, Alesund, Eureka,Summit,Cherksii,Svalbard

Vertical cloud fraction profiles here

Seasonal cloud fraction climatologies here

Time series of cloud fractions here

Barrow, AK skew-T timeseries: July06, May07. June07, July07, Aug07, Sept07, Oct07

Barrow Remote Sensing Obs: July06, July07

 

 

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For the future... ?

 

2x5 Degree Seasonal Cloud Top Height Maps:

 

2x5 Degree Seasonal Individual Cloud Thickness Maps:

 

2x5 Degree Seasonal Total Cloud Thickness Maps:

 

2x5 Degree Seasonal Mean dBZ Maps: