Not exact matches
Re GRACE glacier
measurements, David H. Bromwich & Julien P. Nicolas report a
major reduction
in uncertainty of glacier melting — they can now identify that the TREND is negative, but not yet determine the magnitude!
Impact: From atmospheric
measurements, the North American continent has been estimated to be a
major carbon sink
in some years but the
uncertainty is high and surface carbon inventory assessments are not
in agreement.
The
major uncertainties in satellite
measurements of upper air temperature are due to sensor and spacecraft biases and instabilities, the characteristics of which need to be estimated by performing satellite intercalibrations during overlapping intervals.