Cramer C E, Lykke K R, Woodward J T, Smith A W
National Institute of Standards and Technology, Gaithersburg, MD 20899.
National Institute of Standards and Technology, Gaithersburg, MD 20899 ; L-1 Standards and Technology, Inc., New Windsor, MD 21776.
J Res Natl Inst Stand Technol. 2013 Oct 29;118:396-402. doi: 10.6028/jres.118.020. eCollection 2013.
We report a measurement of lunar spectral irradiance with an uncertainty below 1 % from 420 nm to 1000 nm. This measurement uncertainty meets the stability requirement for many climate data records derived from satellite images, including those for vegetation, aerosols, and snow and ice albedo. It therefore opens the possibility of using the Moon as a calibration standard to bridge gaps in satellite coverage and validate atmospheric retrieval algorithms. Our measurement technique also yields detailed information about the atmosphere at the measurement site, suggesting that lunar observations are a possible solution for aerosol monitoring during the polar winter and can provide nighttime measurements to complement aerosol data collected with sun photometers. Our measurement, made with a novel apparatus, is an order of magnitude more accurate than the previous state-of-the-art and has continuous spectral coverage, removing the need to interpolate between filter passbands.
我们报告了一项月球光谱辐照度测量结果，其在420纳米至1000纳米范围内的不确定度低于1%。这种测量不确定度满足了许多源自卫星图像的气候数据记录的稳定性要求，包括那些关于植被、气溶胶以及冰雪反照率的数据记录。因此，这开启了将月球用作校准标准以填补卫星覆盖空白并验证大气反演算法的可能性。我们的测量技术还能提供有关测量地点大气的详细信息，这表明月球观测可能是极地冬季气溶胶监测的一种解决方案，并且可以提供夜间测量数据以补充用太阳光度计收集的气溶胶数据。我们使用一种新型仪器进行的测量比之前的最先进技术精确一个数量级，并且具有连续的光谱覆盖范围，无需在滤光片通带之间进行插值。
