HRD

See also: ẖrd

Translingual

Symbol

HRD

1. (international standards, historical) ISO 4217 currency code for the former Croatian dinar; a currency used from 1991 to 1994.

English

Noun

HRD

1. (materials science) Abbreviation of hardness on Rockwell scale D.

Proper noun

HRD

1. Initialism of Huanghe River Delta (= Yellow River Delta): a geographic region of China, on the Yellow River/Huanghe, at its delta regions by the Shandong Peninsula, on the Bohai Sea and Yellow Sea, marginal seas of the Pacific Ocean.
   • 1996 September, Xu Xuegong, “The systematic structure of the environment and resources of the Huanghe River Delta”, in Chinese Geographical Science‎^[1], volume 6, →DOI, →ISSN, →OCLC:

     The Huanghe River Delta (HRD) has rich resources and is being developed on a large […] On the basis of analyzing the characteristics of environment and resources in the HRD, this […]

   • 2023 April 28, Ping Li, Yongde Jin, Wei Gao, Xiaolong Zhao, “Spatial differentiation and dynamic mechanism of micro-geomorphology based on acoustic spectrum data of the Huanghe (Yellow) River Delta”, in Journal of Oceanology and Limnology‎^[2], volume 41, →ISSN, →OCLC, archived from the original on 04 May 2024, Abstract:

     Spatial differentiation and dynamic changes in micro-geomorphology were studied based on acoustic data interpretation from a wide range (3 200 km2) of the Huanghe (Yellow) River delta (HRD). […] There were seven typical micro-geomorphologic features in the shallow and surface areas of the HRD, including buried ancient channels, stratigraphic disturbances, scour troughs, sand waves, pits, erosional remnants, and sand spots. […] From the perspective of acoustic profile interpretations, the scale, range, and spatial locations of the micro-geomorphology in the HRD revealed seasonal variation characteristics, and the spatial distributions displayed significant regional differentiation characteristics.

   • 2024 March 6, Yunuo Liu, Guoqing Lin, Yan Zhang, Shenggui Deng, Lei Guo, Tao Liu, “Study on strength properties and soil behaviour type classification of Huanghe River Delta silts based on variable rate piezocone penetration test”, in Acta Oceanologica Sinica‎^[3], volume 42, published 2023, →DOI, →ISSN, →OCLC, archived from the original on 02 June 2026:

     Fine-grained silt is widely distributed in the Huanghe River Delta (HRD) in China, and the sedimentary structure is complex, meaning that the clay content in the silt is variable. […] To analyse the strength properties of surface sediments in the HRD, this paper evaluated the friction angle and its inversion formula through the CPTu penetration test and monotonic simple shear test and other soil unit experiments.

Coordinate terms

• delta
• Huang He
• Huanghe
• Huanghe River
• Huang He River
• PRD (Pearl River Delta)
• Yellow
• Yellow River
• YRD (Yangtze River Delta)