Explanation: Weather recording stations are essential for monitoring and predicting weather patterns, which is particularly important in coastal regions due to the influence of the sea on local weather conditions. In Tamil Nadu, Chennai is the correct location for a weather recording station focused on coastal regions.
Chennai, being the capital city of Tamil Nadu, is situated on the Coromandel Coast of the Bay of Bengal. Its strategic location makes it a critical point for monitoring weather patterns that affect the entire coastal region. The weather station in Chennai collects data on various meteorological parameters such as temperature, humidity, wind speed, and direction, and precipitation. This data is crucial for predicting weather changes, managing natural disasters like cyclones, and planning agricultural activities.
Vellore, while an important city, is located inland and does not have a direct influence from the sea, making it unsuitable for a coastal weather recording station. Kodaikanal, known for its climate and located in the Western Ghats, is a significant meteorological observatory but is not focused on coastal weather patterns. Coimbatore, another major city in Tamil Nadu, is also inland and does not have the necessary coastal influence to be a suitable location for a coastal weather recording station.
Therefore, Chennai is the correct answer as it is the only option that is a coastal city and plays a vital role in monitoring and predicting weather patterns for the coastal regions of Tamil Nadu.