Abstract:The air-sea exchange of dimethyl sulfide (DMS) plays a key role in the sulfur cycle and global climate change. Studies on marine DMS emissions and its air-sea exchange process are still attracting wide attention. This paper summarized the latest progresses for the measurement techniques and air-sea flux estimation. Even though satellite remote sensing takes advantages of achieving large mass data for the spatial-temporal distribution of DMS, gas chromatography is now commonly used and mass spectrometry is becoming more and more popular. As the analytical performance being improved, the observation technologies are being developed toward automatic and intelligent field monitoring. Observation objects are also expanding from the DMS to other related substances such as its precursor and dimethyl sulfoxide, and more accurate data can be achieved. Methods of the DMS air-sea flux analysis mainly include model-based estimation such as stagnant film model and micro-meteorological direct measurement techniques such as eddy correlation. Combination of two or more methods is a way to deeply explore the influence of environmental factors on the air-sea exchange process, which can help to obtain more applicable DMS air-sea exchange rate and amend model parameterization of DMS flux. It will be an important part to study of the global spatial-temporal distribution of DMS and assess its impact on climate change in depth via direct observation and satellite remote sensing. It is also an important goal to build a trend model of marine DMS emissions based on mass data, aiming at the accurate prediction of DMS emissions in future.