A major reassessment of 18 years of satellite observations has provided a new, more detailed view of sea-level change around the world. Incorporating the data from a number of spacecraft, the study re-affirms that ocean waters globally are rising by just over 3mm/yr. Measuring ocean surface shape from satellites has a relatively short history.
ESA’s TIGER II initiative has selected 20 project proposals across Africa to receive support from Earth-observation technology to learn more about the water cycle and to improve water-monitoring resources.
TIGER II is based on the results and achievements of its precursor TIGER I, which sought to help African countries overcome water problems and to bridge Africa's water information gap using Earth-observation (EO) technology.