Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly Islands
This article uses data from the second-generation Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC-2) satellites (wetPf2) to study the temperature and humidity properties of the air masses over Paracel and Spratly Islands in the Vietnam East Sea (South China Sea). The...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
|
| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2024/9927285 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832546192120086528 |
|---|---|
| author | Khuong Le Pham Anh Xuan Nguyen Hiep Van Nguyen Son Hai Hoang Vinh Nhu Nguyen Thang Van Vu |
| author_facet | Khuong Le Pham Anh Xuan Nguyen Hiep Van Nguyen Son Hai Hoang Vinh Nhu Nguyen Thang Van Vu |
| author_sort | Khuong Le Pham |
| collection | DOAJ |
| description | This article uses data from the second-generation Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC-2) satellites (wetPf2) to study the temperature and humidity properties of the air masses over Paracel and Spratly Islands in the Vietnam East Sea (South China Sea). The satellite observational data were validated with the radiosonde data from three stations in Vietnam: Hanoi, Danang, and Ho Chi Minh City. Subsequently, the wetPf2 data are used to analyze the characteristics of temperature and relative humidity variations of the air masses over the Paracel and Spratly regions. Results show that the mean error of the satellite observational data for temperature ranges from −0.06°C to −0.02°C, with standard deviations ranging from 0.73°C to 1.04°C. The mean error of relative humidity fluctuates between 11.6% and 12.5%, with standard deviations ranging from 15.1% to 19.1%. The values are reasonable and comparable to those in previous studies. Seasonal variations of temperature and humidity show that the air mass over the Paracel Islands exhibits a larger annual temperature with an annual variation of approximately 5.0°C, significantly higher than the value of 2.2°C in the air mass over the Spratly Islands. The difference may be due to the greater influence of continental and seasonal wind systems in the northern region. Within both air masses, the annual temperature variation in the boundary layer is much larger than that in the free atmosphere. Annual relative humidity variation is higher in summer and autumn than in winter and spring. The significant changes in the relative humidity with height during winter and no significant change of the relative humidity with height during summer may be related to the important role of strong convective activity carrying moist air upward to higher atmospheric levels during the summer time. |
| format | Article |
| id | doaj-art-4be26e91671147cba7b9bc4020edf572 |
| institution | Kabale University |
| issn | 1687-9317 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-4be26e91671147cba7b9bc4020edf5722025-02-03T07:23:42ZengWileyAdvances in Meteorology1687-93172024-01-01202410.1155/2024/9927285Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly IslandsKhuong Le Pham0Anh Xuan Nguyen1Hiep Van Nguyen2Son Hai Hoang3Vinh Nhu Nguyen4Thang Van Vu5Institute of GeophysicsInstitute of GeophysicsInstitute of GeophysicsInstitute of GeophysicsInstitute of GeophysicsVietnam Institute of Meteorology, Hydrology and Climate ChangeThis article uses data from the second-generation Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC-2) satellites (wetPf2) to study the temperature and humidity properties of the air masses over Paracel and Spratly Islands in the Vietnam East Sea (South China Sea). The satellite observational data were validated with the radiosonde data from three stations in Vietnam: Hanoi, Danang, and Ho Chi Minh City. Subsequently, the wetPf2 data are used to analyze the characteristics of temperature and relative humidity variations of the air masses over the Paracel and Spratly regions. Results show that the mean error of the satellite observational data for temperature ranges from −0.06°C to −0.02°C, with standard deviations ranging from 0.73°C to 1.04°C. The mean error of relative humidity fluctuates between 11.6% and 12.5%, with standard deviations ranging from 15.1% to 19.1%. The values are reasonable and comparable to those in previous studies. Seasonal variations of temperature and humidity show that the air mass over the Paracel Islands exhibits a larger annual temperature with an annual variation of approximately 5.0°C, significantly higher than the value of 2.2°C in the air mass over the Spratly Islands. The difference may be due to the greater influence of continental and seasonal wind systems in the northern region. Within both air masses, the annual temperature variation in the boundary layer is much larger than that in the free atmosphere. Annual relative humidity variation is higher in summer and autumn than in winter and spring. The significant changes in the relative humidity with height during winter and no significant change of the relative humidity with height during summer may be related to the important role of strong convective activity carrying moist air upward to higher atmospheric levels during the summer time.http://dx.doi.org/10.1155/2024/9927285 |
| spellingShingle | Khuong Le Pham Anh Xuan Nguyen Hiep Van Nguyen Son Hai Hoang Vinh Nhu Nguyen Thang Van Vu Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly Islands Advances in Meteorology |
| title | Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly Islands |
| title_full | Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly Islands |
| title_fullStr | Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly Islands |
| title_full_unstemmed | Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly Islands |
| title_short | Application of wetPf2 Data for Investigating Characteristics of Temperature and Humidity of Air Masses over Paracel and Spratly Islands |
| title_sort | application of wetpf2 data for investigating characteristics of temperature and humidity of air masses over paracel and spratly islands |
| url | http://dx.doi.org/10.1155/2024/9927285 |
| work_keys_str_mv | AT khuonglepham applicationofwetpf2dataforinvestigatingcharacteristicsoftemperatureandhumidityofairmassesoverparacelandspratlyislands AT anhxuannguyen applicationofwetpf2dataforinvestigatingcharacteristicsoftemperatureandhumidityofairmassesoverparacelandspratlyislands AT hiepvannguyen applicationofwetpf2dataforinvestigatingcharacteristicsoftemperatureandhumidityofairmassesoverparacelandspratlyislands AT sonhaihoang applicationofwetpf2dataforinvestigatingcharacteristicsoftemperatureandhumidityofairmassesoverparacelandspratlyislands AT vinhnhunguyen applicationofwetpf2dataforinvestigatingcharacteristicsoftemperatureandhumidityofairmassesoverparacelandspratlyislands AT thangvanvu applicationofwetpf2dataforinvestigatingcharacteristicsoftemperatureandhumidityofairmassesoverparacelandspratlyislands |