For the sea surface salinity (SSS) applications, the data collected by the floats needs to be uploaded as a satellite passes through. The floats distributed on sea surface are equipped with sensors to measure interested information to deliver to visible satellites passing through the sky. Also, a Low Earth-Orbit Satellite use transmission control protocol (TCP) to collect data from the floats on sea surface. Hence, a Low Earth- Orbit satellite communication is an important issue for SSS plan. TCP is a popular connection oriented transport layer protocol used for reliable data transfer in the satellite communication. In the evolution of network technology, the transmission control protocol is an important research topic. It is responsible for data transmissions of end users, flow control, congestion control, and other tasks. The paper focuses on the congestion control scheme. In TCP, the congestion control is used to maximize the data transmission without causing network congestion. There exist different congestion control schemes, whose performance in throughput and fairness varies. Some trade fairness for throughput and some vice versa. Our research goal is to achieve good performance on both throughput and fairness in the satellite communication for SSS plan. Through computer simulations, we are given to understand that our scheme can improve the throughput and preserve the fairness.