A Nested Ecohydrological Wireless Sensor Network for Capturing the Surface Heterogeneity in the Midstream Areas of the Heihe River Basin, China

Author

Rui Jin ; Xin Li ; Baoping Yan ; Xiuhong Li ; Wanmin Luo ; Mingguo Ma ; Jianwen Guo ; Jian Kang ; Zhongli Zhu ; Shaojie Zhao

Author_Institution

Cold & Arid Regions Environ. & Eng. Res. Inst., Lanzhou, China

Volume

11

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

2015

Lastpage

2019

Abstract

This letter introduces the ecohydrological wireless sensor network (EHWSN), which we have installed in the middle reach of the Heihe River Basin. The EHWSN has two primary objectives: the first objective is to capture the multiscale spatial variations and temporal dynamics of soil moisture, soil temperature, and land surface temperature in the heterogeneous farmland; and the second objective is to provide a remote-sensing ground-truth estimate with an approximate kilometer pixel scale using spatial upscaling. This ground truth can be used for validation and evaluation of remote-sensing products. The EHWSN integrates distributed observation nodes to achieve an automated, intelligent, and remote-controllable network that provides superior integrated, standardized, and automated observation capabilities for hydrological and ecological processes research at the basin scale.

Keywords

ecology; hydrological techniques; hydrology; land surface temperature; moisture; remote sensing; rivers; soil; wireless sensor networks; China; Heihe River Basin; automated intelligent remote-controllable network; basin scale; distributed observation nodes; ecological process research; heterogeneous farmland; hydrological process research; integrated standardized automated observation capabilities; kilometer pixel scale; land surface temperature; middle reach; midstream areas; multiscale spatial variations; nested ecohydrological wireless sensor network; remote-sensing ground-truth estimate; remote-sensing products; soil moisture; soil temperature; spatial upscaling; surface heterogeneity; temporal dynamics; Land surface; Remote sensing; Soil moisture; Temperature measurement; Temperature sensors; Wireless sensor networks; Eco-hydrological process; remote-sensing validation; spatial variation; wireless sensor network (WSN);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2014.2319085

Filename

6812140