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A front-end board (FEB) configuration test board is developed for examining the configuration interfaces of various application-specific integrated circuits (ASICs) developed for the ATLAS New Small Wheel project. In this paper, we present the development of a FEB configuration test board, and some functions are developed in terms of configurations of the key chips on the FEB–VMM3 and trigger data serializer (TDS2) using giga-bit transceiver-slow control adapter (GBT-SCA). Additionally, the protocols provided by GBT-SCA and the front-end board ASICs are used to verify the whole data link. The board provides technical reference for prototyping the FEB key chip configuration and data readout, as well as the final system configuration. [ABSTRACT FROM AUTHOR]

The pad front-end board (pFEB) and the strip front-end board (sFEB) are developed to read out signals from pads, wires, and strips of the sTGC detector for the ATLAS Phase-I Trigger Upgrade. The pFEB is used to gather and analyze pad trigger, and the sFEB is developed to accept the pad trigger to define the regions-of-interest for strips readout. The performance of p/sFEB must be confirmed before it is mounted on the sTGC detector. We present a scanning test system that is designed according to the test items of the p/sFEB. In the test system, a test pulse board is applied to generate different types of signals to the p/sFEB. The PC software and field-programmable gate array Xilinx analog-to-digital converter cooperate to achieve the scanning test of the analog parameter. At present, the system is utilized for the p/sFEB prototype performance test. [ABSTRACT FROM AUTHOR]

Sea surface temperature (SST) plays a fundamental role in the exchange of heat, momentum, and water vapor between atmosphere and ocean. Therefore, measurement of SST has been done from ships, buoys, offshore platforms, and satellites. During past decades satellites are being increasingly used, because datasets over wide areas can be obtained. In this paper, moderate resolution imaging spectroradiometer (MODIS) on board Terra and Aqua SST products were examined and validated for coastal waters in the Yellow Sea by using the in situ buoy data. A strict match-up method was adopted in view of the complexity and variability of coastal area, resulting in 154 and 164 match-ups for Terra and Aqua, respectively. The MODIS SST agreed well with in situ buoy SST, with squared correlation coefficients R2 of 0.989 for Terra, and 0.987 for Aqua. Relative to in situ SSTs, the satellite-derived SSTs had a bias of 0.23 °C and 0.06 °C, a standard deviation of 0.79 °C and 0.85 °C, and a root mean square error of 0.83 °C and 0.85 °C, for Terra and Aqua. The differences between MODIS and in situ SST exhibited apparent seasonal variations. The accuracy of MODIS SST products for spring and summer were lower than those for autumn and winter, which could be caused by frequent sea fog along the southern coast of Shandong Peninsula. The SST bias approximately depended on wind velocity; low wind velocity could enhance the diurnal SST amplitude and the bulk-skin temperature difference. However, there is no significant dependence of the bias on air-sea temperature difference or surface flow velocity. [ABSTRACT FROM PUBLISHER]