Complex sentence: NASA and NOAA are currently investigating ways to improve the data which is most important since CERES instruments imply a +7 Watts per meter squared incoming imbalance at the top of the atmosphere of the radiation budget.
Split into simpler sentences: NASA and NOAA are currently investigating ways to improve the data. This is important since CERES instruments imply a +7 Watts per meter squared incoming imbalance at the top of the atmosphere of the radiation budget.