Geoscience Reference
In-Depth Information
mm
60
TOPEX
50
Jason−1
Jason−2
60−day smoothing
Inverse barometer applied, GIA corrected
40
30
20
10
0
Rate = 3.1
±
0.4 mm/yr
Seasonal signals removed
−10
University of Colorado 2012_rel
4
−20
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
Fig. 3 (top) Differences between GRACE microgravity estimates of changes in mass on land in mm of land
water equivalent from January to April 2011 versus 2010. (bottom) Estimates of global sea-level anomalies
from University of Colorado based upon satellite altimetry. The inverse barometer and postglacial rebound
adjustments have been applied. The dots show individual values, and the dark blue line shows the 2-month
smoothed changes (Nerem et al.
2010
)
the science-based information to address impacts of climate variability and change to food,
water, health, energy, biodiversity and so on.
The GEWEX Science Steering Group (SSG) has identified four GEWEX Science
Questions (GSQs). These emerged from in depth discussions and subsequent circulation to
all GEWEX Panel members for commentary. They were then posted on the GEWEX web
