Wang, K., G. Chen, X. Bi, D. Shi, and K. Chen, 2020: Comparison of convective and
stratiform precipitation properties in developing and nondeveloping tropical disturbances observed by the Global Precipitation Measurement over the western North Pacific. J. Meteor. Soc. Japan, 98,
Special Edition on Global Precipitation Measurement (GPM): 5th Anniversary,
Early Online Release Graphical Abstract with highlights
Plain Language Summary: A disturbance that develops into a tropical cyclone (TC) over the western North Pacific (WNP) needs to satisfy two essential preconditions in terms of precipitation characteristics from Global Precipitation Measurement (GPM). First, a large fraction of stratiform precipitation covers the region that is within 400 km from the disturbance center. Second, strong convective precipitation occurs within the inner-core (within 200 km of the disturbance center) region. In the TC formation process, the disturbances experience a remarkably more oscillatory process in the inner-core region than in the outer-core region.
- The disturbances over WNP are categorized into developing and nondeveloping groups to investigate the differences between satellite-retrieved convective and stratiform precipitation properties in both the inner- and outer-core regions.
- The disturbances prone to develop into a TC over the WNP satisfy the following two essential preconditions in terms of precipitation characteristics.
- TC formations evolving from parent disturbances can be regarded as an outcome of the joint contribution from the two distinct types of precipitation cloud.