GOCE


GIS Data

Changes in Earth’s gravity field resulting from loss of ice from West Antarctica between November 2009 and June 2012 (mE = 10–12 s–2). A combination of data from ESA’s GOCE mission and NASA’s Grace satellites shows the ‘vertical gravity gradient change’.Changes in Earth’s gravity field resulting from loss of ice from West Antarctica between November 2009 and June 2012 (mE = 10–12 s–2). A combination of data from ESA’s GOCE mission and NASA’s Grace satellites shows the ‘vertical gravity gradient change’. Source: DGFI/Planetary Visions

Measuring Small Variations in the Earth’s Gravity

Scientists can create higher resolution maps showing small variations in the earth’s gravity gradient by combining data from two different satellites. The NASA–German Grace satellites were launched in May of 2002 in order to map variations in Earth’s gravity field.  The two satellites fly about 220 kilometers (137 miles) apart in a polar […]

Spatial Analysis

GOCE geoid model. Source: ESA.

GOCE Gravity Mapping Mission Has Ended

Launched on March 17, 2009 by the European Space Agency (ESA), the low altitude satellite GOCE is set to run out of fuel around October of this year. GOCE, which stands The Gravity field and steady-state Ocean Circulation Explorer was launched with the purpose of mapping the Earth’s gravity field at a high level of detail.

GIS Learning

GeoBriefs: Embedding Google Maps, GIS Career Profile, Mexico Wins the Geography Bee

UPDATE:  Google has formally announced the availability of embedded Google Maps.  Read about it and get instructions on using this new functionality from Google’s Lat Long Blog: YouTube-style Embeddable Maps As reported on the CNET site, Google Maps is poised to release a new feature next week that will allow users […]