气候变化领域集成服务门户(CCPortal): EPICA Dronning Maud Land EDML ice core drilling protocol

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.841035
	EPICA Dronning Maud Land EDML ice core drilling protocol
	Wilhelms; Frank; Miller; Heinz; Gerasimoff; Michael D; Drücker; Cord; Frenzel; Andreas; Fritzsche; Diedrich; Grobe; Hannes; Hansen; Steffen Bo; Hilmarsson; Sverrir Æ; Hoffmann; Georg; Hörnby; Kerstin; Jaeschke; Andrea; Jakobsdottir; Steinunn S; Juckschat; Paul; Karsten; Achim; Karsten; Lorenz; Kaufmann; Patrik R; Karlin; Torbjörn; Kohlberg; Eberhard; Kleffel; Guido; Lambrecht; Anja; Lambrecht; Astrid; Lawer; Gunther; Schärmeli; Ivan; Schmitt; Jochen; Sheldon; Simon G; Takata; Morimasa; Trenke; Marcus; Twarloh; Birthe; Valero-Delgado; Fernando; Wilhelms-Dick; Dorothee
发布日期	2014-12-22
数据集类型	dataset
英文简介	We report on the EPICA Dronning Maud Land (East Antarctica) deep drilling operation. Starting with the scientific questions that led to the outline of the EPICA project, we introduce the setting of sister drillings at NorthGRIP and EPICA Dome C within the European ice-coring community. The progress of the drilling operation is described within the context of three parallel, deep-drilling operations, the problems that occurred and the solutions we developed. Modified procedures are described, such as the monitoring of penetration rate via cable weight rather than motor torque, and modifications to the system (e.g. closing the openings at the lower end of the outer barrel to reduce the risk of immersing the drill in highly concentrated chip suspension). Parameters of the drilling (e.g. core-break force, cutter pitch, chips balance, liquid level, core production rate and piece number) are discussed. We also review the operational mode, particularly in the context of achieved core length and piece length, which have to be optimized for drilling efficiency and core quality respectively. We conclude with recommendations addressing the design of the chip-collection openings and strictly limiting the cable-load drop with respect to the load at the start of the run.
空间范围	Latitude: -75.002500 * Longitude: 0.068400
时间范围	2001-01-10T00:00:00 - 2006-01-17T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	冰冻圈
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/213762
推荐引用方式 GB/T 7714	Wilhelms,Frank,Miller,et al. EPICA Dronning Maud Land EDML ice core drilling protocol.2014-12-22.https://doi.org/10.1594/PANGAEA.841035.