Estimation and Long-term Trend Analysis of Surface Solar Radiation in Antarctica: A Case Study of Zhongshan Station

Zeng, Zhaoliang; Wang, Zemin; Ding, Minghu; Zheng, Xiaodong; Sun, Xiaoyu; Zhu, Wei; Zhu, Kongju; An, Jiachun; Zang, Lin; Guo, Jianping; Zhang, Baojun

doi:10.1007/s00376-021-0386-6

Cited by 9 publications

(6 citation statements)

References 48 publications

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“…Although the area of farmland ecosystem in Jiangxi Province decreased by 1.73% in the past 10 years, the value of agricultural products increased by 63.57%, which may be attributed to the change of agricultural production mode and the increase of yield per unit area caused by the application of chemical fertilizers [78]. Thirdly, this paper analyzes the trend surface evolution of GEP per unit area in Jiangxi Province, which provides a new perspective for analyzing the spatial distribution and variation trend of GEP [79]. Fourth, China's GEP accounting uses the biophysical model method, which is more accurate than the equivalent factor method or the energy method when calculating the ecosystem services value.…”

Section: Discussionmentioning

confidence: 99%

Study on the Coupling and Coordination Relationship between Gross Ecosystem Product (GEP) and Regional Economic System: A Case Study of Jiangxi Province

Xie

2022

Land

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The Gross Ecosystem Product (GEP) is an important way to assess the state of the ecosystem and to clarify the coupling and coordination between the ecosystem and the economic system, which can be a scientific basis for achieving the synergistic development of economic society and ecological civilization. In this paper, 11 prefectural cities in Jiangxi Province are taken as research areas. Based on the data of land use, normalized difference vegetation index, net primary productivity, soil, meteorology, elevation and statistics, the study accounts for the GEP in Jiangxi Province in 2010 and 2020 based on a biophysical model, and analyzes the changes of its ecosystem’s state. Based on the economic data obtained from the Jiangxi Statistical Yearbook, a regional economic index system was established; the levels of GEP and the regional economy were measured with the help of entropy-weight-TOPSIS method, and the interaction mechanism and coupling coordination dynamics between them were explored based on the coupling coordination degree model. It was found that during 2010–2020, the GEP in Jiangxi Province increased by 0.35%, and the value of material goods and cultural services increased by 49.57% and 414.03%, respectively, but the value of regulating services decreased by 9.89%; the main coupled and coordinated development characteristics of ecosystem and economic system in Jiangxi Province developed from basic coordination-economic lagging to moderate coordination-ecological lagging, and the coupled coordinated development continues to improve, but the development of gross ecosystem product lags behind the level of economic development.

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Section: Discussionmentioning

confidence: 99%

Study on the Coupling and Coordination Relationship between Gross Ecosystem Product (GEP) and Regional Economic System: A Case Study of Jiangxi Province

Xie

2022

Land

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“…1), at different latitudes (69-83 • S) and at different elevations (detailed information can be found in Table 1). The first site, Zhongshan, was established in March 1989, when CHINARE first arrived in East Antarctica (Ding et al, 2020b;Zeng et al, 2021). It was initially a staffed weather station but has now been replaced by an AWS.…”

Section: Observation Region and Site Descriptionsmentioning

confidence: 99%

The PANDA automatic weather station network between the coast and Dome A, East Antarctica

Ding

Zou

Sun

et al. 2022

Earth Syst. Sci. Data

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Abstract. This paper introduces a unique multiyear dataset and the monitoring capability of the PANDA automatic weather station network, which includes 11 automatic weather stations (AWSs) across the Prydz Bay–Amery Ice Shelf–Dome A area from the coast to the summit of the East Antarctic Ice Sheet. The ∼ 1460 km transect from Zhongshan to Panda S follows roughly along ∼ 77∘ E longitude and covers all geographic units of East Antarctica. Initial inland observations, near the coast, started in the 1996/97 austral summer. All AWSs in this network measure air temperature, relative humidity, air pressure, wind speed and wind direction at 1 h intervals, and some of them can also measure firn temperature and shortwave/longwave radiation. Data are relayed in near real time via the Argos system. The data quality is generally very reliable, and the data have been used widely. In this paper, we firstly present a detailed overview of the AWSs, including the sensor characteristics, installation procedure, data quality control protocol and the basic analysis of each variable. We then give an example of a short-term atmospheric event that shows the monitoring capacity of the PANDA AWS network. This dataset, which is publicly available, is planned to be updated on a near-real-time basis and should be valuable for climate change estimation, extreme weather events diagnosis, data assimilation, weather forecasting, etc. The dataset is available at https://doi.org/10.11888/Atmos.tpdc.272721 (Ding et al., 2022b).

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“…The Grove Mountains area is about 400 km away from the Antarctic Zhongshan station (China). The eastern flank of the Lambert-Amery ice shelf is close to the experimental area [44], and the ice from the Antarctic inland flows through the Grove Mountains to the Lambert-Amery ice shelf along the northwest direction, and the motion is relatively slow and maximum ice velocity reaches 40 m/yr [45]. Therefore, slower ice velocities can be monitored with the InSAR techniques.…”

Section: Datasets and Study Areamentioning

confidence: 99%

Ionospheric Correction of L-Band SAR Interferometry for Accurate Ice-Motion Measurements: A Case Study in the Grove Mountains Area, East Antarctica

Wang

et al. 2022

Remote Sensing

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Ice motion is an essential element for accurately evaluating glacier mass balance. Interferometric synthetic aperture radar (InSAR) has been widely applied for monitoring ice motion with high precision and wide coverage in the Antarctic. However, the ionospheric effects can significantly impact InSAR-based ice-motion measurements. At low radar frequencies in particular, the ionospheric effects have been regarded as a serious source of noise in L-band SAR data. The split-spectrum method (SSM) is commonly used for correcting the ionospheric effects of the InSAR technique. However, it requires spatial filtering with the relatively large factors used to scale the sub-bands’ interferograms, which often results in an unwrapped phase error. In this paper, a reformulation of the split-spectrum method (RSSM) is introduced to correct the ionospheric effects in the Grove Mountains of East Antarctica, which have slow ice flow and frequent ionosphere changes. The results show that RSSM can effectively correct the ionospheric effects of InSAR-based ice-motion measurements. To evaluate the ability of ionospheric correction using RSSM, the result of ionospheric correction derived from SSM is compared with the results of RSSM. In addition, ionosphere-corrected ice motion is also compared with GPS and MEaSUREs. The results show that the ionosphere-corrected ice velocities are in good agreement with GPS observations and MEaSUREs. The average ice velocity from the InSAR time series is compared to that from MEaSUREs, and the average ionosphere-corrected ice velocity error reduces 43.9% in SSM and 51.1% in RSSM, respectively. The ionosphere-corrected ice velocity error is the most significant, reducing 86.9% in SSM and 90.4% in RSSM from 1 November 2007 to 19 December 2007. The results show that the ability of RSSM to correct ionospheric effects is slightly better than that of SSM. Therefore, we deduce that the RSSM offers a feasible way to correct ionospheric effects in InSAR-based ice-motion measurements in Antarctica.

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Estimation and Long-term Trend Analysis of Surface Solar Radiation in Antarctica: A Case Study of Zhongshan Station

Cited by 9 publications

References 48 publications

Study on the Coupling and Coordination Relationship between Gross Ecosystem Product (GEP) and Regional Economic System: A Case Study of Jiangxi Province

Study on the Coupling and Coordination Relationship between Gross Ecosystem Product (GEP) and Regional Economic System: A Case Study of Jiangxi Province

The PANDA automatic weather station network between the coast and Dome A, East Antarctica

Ionospheric Correction of L-Band SAR Interferometry for Accurate Ice-Motion Measurements: A Case Study in the Grove Mountains Area, East Antarctica

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