Survey maps Philippine Sea structures

Performance of Passive and Active Sonars in the Philippine Sea

The objectives this year have been to model the features of a CZ which we observed in the PhilSea09 experiment. The data from this found very abrupt transitions and into the CZ’s and narrow widths for them. We note that not all CZ’s ”focus”, i.e. sharp edges as we observed in the Philippine Sea. This feature has been noted by Brekhovskikh and Munk where they noted that such zones tend to remain...

14. Oligocene to Recent Calcareous Nannoplankton from the Philippine Sea, Deep Sea Drilling Project Leg 59

During Leg 59 of the Deep Sea Drilling Project, five sites (447 to 451) were occupied and seven holes drilled between Okinawa and Guam in the Philippine Sea (Fig. 1). All holes except Hole 447 yielded common calcareous nannoplankton at certain intervals cored. Nannoplankton assemblages and their age assignments will be discussed for each site, and fossil lists for selected samples from Holes 44...

Intensified Springtime Deep Convection over the South China Sea and the Philippine Sea Dries Southern China

Springtime rainfall, accounting for 25-40% of the annual rainfall in southern China, exerts great agricultural and socioeconomic impacts on the region. In the recent decades, southern China has experienced a significant declining trend of precipitation in boreal spring. Meanwhile, precipitation has increased over the South China Sea and the Philippine Sea (SCS-PhS). This paper presents observat...

A Survey of Invertibility and Spectrum Preserving Linear Maps

Finding Structures in Weather Maps

We describe an eeective computational method for extracting structural information from spatial data sets. For instance, the structural information such as the location, shape, size, and movement about pressure cells and troughs are important for weather prediction. We are interested in extracting these structures and representing them at aggregate levels where salient geometric features are hi...