2015 Aquarius Science Cal/Val Workshop
2015 Aquarius Science Cal/Val Workshop
March 31-April 1, 2015Santa Rosa, CA
In 2015, the Aquarius Science team met for the Science Calibration/Validation Workshop held in Santa Rosa, California. The two-day meeting was focused on the path to Version 4 data processing.
Agenda
Documents (16)
An Evaluation of V3.4 SSS Based on Comparisons with V2.0, V3.0 and Argo
Lee, T. (31-Mar-15). This presentation compares the Level 3 monthly Aquarius data with monthly maps of SSS based on Argo from APDRC, and provides a summary of biases, and statistics for their differences. Aquarius March Cal/Val Meeting Overview and Objectives
Brown, S. (31-Mar-15). An overview of the radiometer and its algorithm for detecting radio frequency interference (RFI), and a proposed approach for tuning parameters to reduce bias. Aquarius Scatterometer Calibration and RFI Status
Fore, A., Yueh, S., Tang, W., and Hayashi, A. (31-Mar-15). The results of the Aquarius Scatterometer Calibration, and the status of the effect of radio frequency interference (RFI) on the satellite signal. Aquarius Validation with Argo and HYCOM V3.0 and V3.4
Kao, H-Y. (31-Mar-15). An overview of the validation efforts for Aquarius, using Argo (in-situ measurements) and HYCOM models for Version 3.0 and 3.4 data. Clean-up of Level-2 Data Products
Patt, F., and Meissner, T. (01-Apr-15). On the final day of the workshop, there was a discussion of the status and clean-up efforts of the L2 data files. The discussion included an overview of what variables are currently found in the L2 files, which can be eliminated, and whether there are any variables or other information that need to be added. Clean-up of Level-2 Data Products
Patt, F., and Meissner, T. (01-Apr-15). On the final day of the workshop, there was a discussion of the status and clean-up efforts of the L2 data files. The discussion included an overview of what variables are currently found in the L2 files, which can be eliminated, and whether there are any variables or other information that need to be added. Complete Refresh of Aquarius Algorithm Tables
Wentz, F., and Meissner, T. (31-Mar-15). This presentation focuses on the Aquarius algorithm tables, including an overview of tables affected by land, sun and galactic contributions. The regenerated tables using the new antenna pattern and galaxy map are shown in comparison to their previous versions, and the impact of these updates is reviewed. Discussion of Differences Between Forward Modeled and Retrieved SSS
Hong, L. (01-Apr-15). In continuing efforts to validate Aquarius data, this talk focuses on the difference between forward modeled salinity data and those that have been retrieved by Aquarius. Formal Uncertainty Assessment in Aquarius Salinity Retrieval Algorithm
Meissner, T. (31-Mar-15). Physical measurements have values and uncertainty, and it is important for the ocean modeling (and other) communities to understand the sources of error in the salinity measurement from Aquarius. This presentation discusses the creation of an uncertainty estimate for Aquarius, and presents result for L2 and L3 uncertainty estimates. Inter-beam Differences Analysis
Kay, H-Y., and Lagerloef, G. (31-Mar-15). Researchers selected a track to examine the interbeam differences, using crossover differences to find the value of orbit errors. It remains clear what causes the interbeam differences, but the process used was determined to be useful in finding orbit errors and reducing interbeam differences. Near-Surface Salinity Stratification Observed by SMOS and Aquarius Under Rainy Conditions
Santos-Garcia, A., Jones, L., and Jacob, M.M. (31-Mar-15). This talk highlights near-surface salinity stratification observed by SMOS and Aquarius under rainy conditions. Outputs from the Rain Impact Model (RIM) are compared to observations from both satellites. Radiometer RFI Algorithm and Parameter Tuning
de Matthaeis, P. (31-Mar-15). The detection algorithm for RFI is presented, as well as a proposed approach for parameter tuning. TEOS-10, Density, Spice and Aquarius: An Overview
Schanze, J. (31-Mar-15). The Thermodynamic Equation of State 2010 (TEOS-10) has been adopted by major research organizations, and should be used for all publications. In addition, measurements of density and spice are useful derived quantities. The question discussed is whether it makes sense to integrate these quantities into the Aquarius product, and if so, at what level? The Impact of Auxiliary SST on SSS
Scott, J. (31-Mar-15). Aquarius uses auxiliary SST measurements in the Aquarius SSS retrieval. This presentation attempts to determine whether there are uncertainties inherent in the use of auxiliary SST, and if those uncertainties lead to systematic errors in the Aquarius SSS retrieval. V3.4 GMF Update: Mitigation of SST Dependent Biases
Meissner, T., Wentz., F., and Scott, J. (31-Mar-15). An update on the Geophysical Model Functions (GMF) for Aquarius data Version 3.4. V3.4.1 L2 Residual SSS Retrieval Bias
Hong, L., and Gales, J. (31-Mar-15). This talk addresses the residual bias in SSS in Version 3.4.1, which is slightly positive for all beams. The possibility of using a rain filter to mitigate this bias is discussed.