دورية أكاديمية
Synthesis of the ICESat/ICESat-2 and CryoSat-2 observations to reconstruct time series of lake level
| العنوان: | Synthesis of the ICESat/ICESat-2 and CryoSat-2 observations to reconstruct time series of lake level |
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| المؤلفون: | Ye Feng, Leiku Yang, Pengfei Zhan, Shuangxiao Luo, Tan Chen, Kai Liu, Chunqiao Song |
| المصدر: | International Journal of Digital Earth, Vol 16, Iss 1, Pp 183-209 (2023) |
| بيانات النشر: | Taylor & Francis Group, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Mathematical geography. Cartography |
| مصطلحات موضوعية: | lake level, cryosat-2, icesat, icesat-2, satellite altimetry, Mathematical geography. Cartography, GA1-1776 |
| الوصف: | Synthesis of multi-satellite altimetry facilitates the acquisition of long-term changes in lake level but may induce biases due to inconsistent data sources, and thus remains largely unexplored. This study investigates the integrated application of Ice, Cloud, and land Elevation Satellite (ICESat), ICESat-2, and CryoSat-2 missions to provide consecutive lake level series in 2003–2020. The sample comprises 48 lakes in the world with gauge-based or Hydroweb water level data. The CryoSat-2 data are first adjusted to the ICESat-2 height reference based on the mean values of their monthly water level difference during their overlapping period (2018–2020). Then, the corrected CryoSat-2 data are used to link the ICESat and ICESat-2 data. Results show that in the sample lakes, the deviations between CryoSat-2 and ICESat-2 data vary and range from −0.78 m to 0.13 m. The data quality of the synthesized time series is evaluated by comparing against the validation data, with an average R2 of 0.84. This study shows that CryoSat-2 has the potential of filling the gap between ICESat and ICESat-2. The three altimeters can be expected to integrate effectively for monitoring lake water level changes in the past two decades. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1753-8947 1753-8955 17538947 |
| العلاقة: | https://doaj.org/toc/1753-8947Test; https://doaj.org/toc/1753-8955Test |
| DOI: | 10.1080/17538947.2023.2166134 |
| الوصول الحر: | https://doaj.org/article/8b5192c0b4294cf297bbb98cc9ce6d53Test |
| رقم الانضمام: | edsdoj.8b5192c0b4294cf297bbb98cc9ce6d53 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 17538947 17538955 |
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| DOI: | 10.1080/17538947.2023.2166134 |