Arctic Cloud Summer Expedition (ACSE): surface temperature measurements from the University of Leeds Heitronics KT15.85 infra red radiative temperature sensor on board Icebreaker Oden

This dataset contains surface temperature measurements from the University of Leeds' two Heitronics KT15.85 infra red radiative temperature sensors mounted on board the Swedish Icebreaker Oden durning Arctic Cloud Summer Expedition (ACSE). ACSE took place in the Arctic during summer 2014. These measurements were used to complement a suite of other observations taken during the cruise. Those of the UK contribution, as well as selected other data, are available within the associated data collection in the Centre for Environmental Data Analysis (CEDA) archives. Other cruise data may be available in the NOAA ACSE and The Bolin Centre for Climate Research SWERUS (SWEdish-Russian-US) holdings - see online resources linked to this record. Both instruments were mounted to point to starboard, but instrument 1 pointing 45 degrees forward and instrument 2 pointing 45 degrees aft, taking raw measurements at 1Hz. The data contain both the raw measured temperature (t_meas) and a corrected value, adjusted for reflection of thermal radiation from surface. The correction follows that developed by Phil Hignett for a similar sensor on the UK Met Office C130 aircraft : MRF Tech note 28, 1988. The Arctic Cloud Summer Expedition (ACSE) was a collaboration between the University of Leeds, the University of Stockholm, and NOAA-CIRES. ACSE aimed to study the response of Arctic boundary layer cloud to changes in surface conditions in the Arctic Ocean as a working package of the larger Swedish-Russian-US Investigation of Climate, Cryosphere and Carbon interaction (SWERUS-C3) Expedition in Summer 2014. This expedition was a core component to the overall SWERUS-C3 programme and was supported by the Swedish Polar Research Secretariat. ACSE took place during a 3-month cruise of the Swedish Icebreaker Oden from Tromso, Norway to Barrow, Alaska and back over the summer of 2014. During this cruise ACSE scientists measured surface turbulent exchange, boundary layer structure, and cloud properties. Many of the measurements used remote sensing approaches - radar, lidar, and microwave radiometers - to retrieve vertical profiles of the dynamic and microphysical properties of the lower atmosphere and cloud. The UK participation of ACSE was funded by the Natural Environment Research Council (NERC, grant: NE/K011820/1) and involved instrumentation from the Atmospheric Measurement Facility of the UK's National Centre for Atmospheric Science (NCAS AMF). This dataset collection contains data mainy from the UK contribution with some additional data from other institutes also archived to complement the suite of meteorological measurements.本数据集包含利兹大学两台安装于瑞典破冰船“奥登号”（Oden）上的Heitronics KT15.85红外辐射温度传感器的地表温度测量数据，相关观测由2014年夏季北极云夏季考察（Arctic Cloud Summer Expedition，ACSE）期间完成。本次考察于2014年夏季在北极地区开展，所获测量数据用于补充本次科考航次中的一系列其他观测资料。本数据集的英国贡献部分以及部分精选其他数据，可在环境数据分析中心（Centre for Environmental Data Analysis，CEDA）档案的关联数据集合中获取。本次航次的其余数据可在美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）ACSE数据集以及博林气候研究中心瑞典-俄罗斯-美国合作项目（SWEdish-Russian-US，SWERUS）的馆藏中获取——详见本记录附带的在线资源。 两台传感器均安装于右舷方向，其中1号传感器向前倾斜45°，2号传感器向后倾斜45°，以1赫兹的频率采集原始测量数据。本数据集包含原始测量温度（t_meas）以及针对地表热辐射反射进行校正后的修正值，该校正方法参考了菲尔·希格内特（Phil Hignett）1988年为英国气象局C130飞机上的同类传感器开发的校正方案（MRF技术报告第28号，1988年）。 北极云夏季考察（ACSE）由利兹大学、斯德哥尔摩大学以及NOAA-CIRES联合开展，作为2014年夏季瑞典-俄罗斯-美国气候、冰冻圈与碳相互作用考察（Swedish-Russian-US Investigation of Climate, Cryosphere and Carbon Interaction，SWERUS-C3）大型项目的子课题，其旨在研究北极海洋边界层云对地表条件变化的响应。本次考察是SWERUS-C3整体计划的核心组成部分，由瑞典极地研究秘书处资助。2014年夏季，ACSE依托瑞典破冰船“奥登号”开展了为期3个月的航次，航线从挪威特罗姆瑟出发，前往美国阿拉斯加州巴罗后返回。 本次航次期间，ACSE科考团队开展了地表湍流交换、边界层结构以及云特性的观测，多数观测采用遥感手段——包括雷达、激光雷达以及微波辐射计——来获取低层大气与云系的动力学和微物理特性垂直廓线。ACSE的英国参与项目由自然环境研究委员会（Natural Environment Research Council，NERC，资助号：NE/K011820/1）资助，所用仪器来自英国国家大气科学中心大气测量设施（National Centre for Atmospheric Science Atmospheric Measurement Facility，NCAS AMF）。 本数据集集合主要包含英国贡献的观测数据，同时纳入了部分来自其他机构的补充数据，以完善整套气象观测资料集。