Popularity of cloud computing is increasing day by day 
in distributed computing environment. There is a growing trend of 
using cloud environments for storage and data processing needs. Cloud 
computing provides applications, platforms and infrastructure over the 
internet. It is a new era of referring to access shared computing 
resources. On the other hand, wireless sensor networks have been seen
as one of the most essential technologies for the 21st century where 
distributed spatially connected sensor node automatically forms a 
network for data transmission and receive among themselves is
popularly known as Sensor Network. For security and easy access of 
data, cloud computing is widely used in distributed/mobile computing 
environment. This is possible due to miniaturization of communication 
technology. Many researchers have cited different types of technology 
in this context. But the application scenario are of important 
consideration while designing a specific protocol for Sensor network 
with reference to Cloud Computing. In this paper, we surveyed some
typical applications of Sensor Network using Cloud computing as 
backbone. Since Cloud computing provides plenty of application, 
platforms and infrastructure over the Internet; it may combined with 
Sensor network in the application areas such as environmental 
monitoring, weather forecasting, transportation business, healthcare, 
military application etc. Bringing various WSNs deployed for different 
applications under one roof and looking it as a single virtual WSN 
entity through cloud computing infrastructure is novel.