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Isolines for satellite data

16 January 2015   //   by admin   //   Data, News  //  Comments (0)
Now Climate Wikience displays isolines for satellite data. Until now, Climate Wikience was able to display isolines only for data without missing values like climate reanalysis. However, satellite measurements often have areas without data due to clouds or other reasons. Improved algorithm of Climate Wikience now draws isolines for data with missing values.

Below are examples of visualizing isolines for satellite data.
Click an image for its bigger version.

Eastward wind speed for 10 meters above sea surface (u10m) on the 28th of August, 2005. Blended data product from several satellites including QuikSCAT, SSMIs, TMI and AMSR-E.
Scatterometer_wind_speed_u10m_28Aug2005

NASA MERRA Leaf Are Index (LAI) on the 28th of August, 2010.
MERRA_LAI_LeafAreIndex_28Aug2010
Zoom at North America, Eurasia, and South America.
MERRA_LAI_LeafAreIndex_28Aug2010_ZoomNorthAmerica MERRA_LAI_LeafAreIndex_28Aug2010_ZoomEuropeAsia

Information-icon
You can label any isoline at its arbitrary point. Simply enable “Click for value” option at the “Properties tab”. A label with isoline value will appear at the point where you clicked on the isoline. Click on the isoline again to hide the label.
Zoom over South America with several labeled isolines and increased width of isolines (compare “Properties tab” of this image and the one below).
MERRA_LAI_LeafAreIndex_28Aug2010_ZoomSouthAmerica_labeled
The same area without isolines labelling.
MERRA_LAI_LeafAreIndex_28Aug2010_ZoomSouthAmerica

Aura OMI Nitrogen Dioxide (NO2) tropospheric concentration on the 1st of October, 2004.
NitrogenDioxide_NO2_01Oct2004_AuraOMI_isolines
Zoom over Los Angeles.
NitrogenDioxide_NO2_01Oct2004_AuraOMI_isolines_zoomed_LosAngeles

Terra MODIS Aerosol Optical Thickess (AOT) on the 1st of August, 2005.
MODIS_AerosolOpticalThickness_1Aug2005
Zoom over Africa
MODIS_AerosolOpticalThickness_1Aug2005_ZoomAfrica

Terra MODIS Cloud Top Temperature on the 25th of August, 2005.
Modis_CLOUDTopTemperature_28Aug2005_withsurface
The 25th of August (2005) is the date for peak strength of hurricane Katrina.
Modis_CLOUDTopTemperature_28Aug2005_KATRINA_peak_strength_with_hurricane_path
The same areas without tropical cyclone tracks and without surface.
Modis_CLOUDTopTemperature_28Aug2005_withsurface   Modis_CLOUDTopTemperature_28Aug2005

Information-icon
Climate Wikience is able to interactively visualize tropical cyclones. Find out more at Tropical cyclones page.

NASA MERRA Greeness Vegetation Fraction on the 28th of August, 2010.
MERRA_GRN_VegetationGreenessFraction_28Aug2010
Zoom over North America and South America.
MERRA_GRN_VegetationGreenessFraction_28Aug2010_zoom_NorthAmerica

MERRA_GRN_VegetationGreenessFraction_28Aug2010_zoom_SouthAmerica

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