ARM Climate Research Facility Spectral Surface Albedo Value-Added Product (VAP) Report

McFarlane, S ; Gaustad, K ; Long, C ; Mlawer, E

Pacific Northwest National Laboratory

关键词: ALBEDO;    BACKFILLING;    CLIMATES;    DOWNWELLING;    PLANTS;    RADIANT FLUX DENSITY;    RADIOMETERS;    RESOLUTION;    UPWELLING;   

DOI  :  10.2172/1018941
RP-ID  :  DOE/SC-ARM/TR-096
PID  :  OSTI ID: 1018941
Others  :  Other: PNNL-20544
Others  :  TRN: US201120%%350

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This document describes the input requirements, output data products, and methodology for the Spectral Surface Albedo (SURFSPECALB) value-added product (VAP). The SURFSPECALB VAP produces a best-estimate near-continuous high spectral resolution albedo data product using measurements from multifilter radiometers (MFRs). The VAP first identifies best estimates for the MFR downwelling and upwelling shortwave irradiance values, and then calculates narrowband spectral albedo from these best-estimate irradiance values. The methodology for finding the best-estimate values is based on a simple process of screening suspect data and backfilling screened and missing data with estimated values when possible. The resulting best-estimate MFR narrowband spectral albedos are used to determine a daily surface type (snow, 100% vegetation, partial vegetation, or 0% vegetation). For non-snow surfaces, a piecewise continuous function is used to estimate a high spectral resolution albedo at 1 min temporal and 10 cm-1 spectral resolution.