(1) The compressed archive 'RCCM_Soft_Win.zip' includes the self-contained, executable IDL Virtual Machine software package that allows processing MISR RCCM data without requiring an IDL license. Users who do have access to an IDL license are encouraged to obtain the necessary source codes from the GitHub web site https://github.com/mmverstraete (Verstraete et al., 2019, https://doi.org/10.5281/zenodo.3240018) and to incorporate those functions in their own custom programs.(2) The document 'RCCM_Soft_Win.pdf' provides the User Manual to install and use the software package 'RCCM_Soft_Win.zip' on a PC running under the MS Windows operating system.In addition, the authors provide the test input data archive 'RCCM_input_68050.zip', available from Verstraete et al., 2020, http://doi.org/10.5880/fidgeo.2020.004, to allow users to explore for themselves the various steps of this missing data replacement process in actual MISR RCCM files.Background information:The Multi-angle Imaging SpectroRadiometer (MISR) is one of the five instruments hosted on- board the NASA Terra platform, launched on 18 December 1999. It features 9 cameras pointing at various angles along the track of the platform, each measuring the amount of solar radiation reflected by the Earth in 4 spectral bands. MISR started acquiring observations on 24 February 2000, and is still operating as of this writing, therefore providing almost 20 years of continuous global observations.One of the most basic data products generated by NASA after the initial pre-processing of MISR raw data is the Level 1B2 Georectified Radiance Product (GRP). This data product intermittently contains missing data that are often due to a temporary overload of the on- board computer. This process, which results in the dropping of lines of measurements while the computer resets itself, tends to occur especially when the MISR instrument is switched from the default Global Mode (GM) to the occasional Local Mode (LM) of operation, and conversely. As a result, those missing lines are unevenly distributed and tend to cluster around particular sites and dates.
(1) The compressed archive 'L1B2 Soft Win.zip' includes the self-contained, executable IDL Virtual Machine software package that allows processing MISR L1B2 data without requiring an IDL license. Users who do have access to an IDL license are encouraged to obtain the necessary source codes from the GitHub web site https://github.com/mmverstraete (Verstraete et al., 2019, https://doi.org/10.5281/zenodo.3519989) and to incorporate those functions in their own custom programs.(2) The document 'L1B2_Soft_Win.pdf' provides the User Manual to install and use the software package 'L1B2_Soft_Win.zip' on a PC running under the MS Windows operating system.In addition, the authors provide the test input data archive 'L1B2_input_68050.zip', available from Verstraete et al., 2020, http://doi.org/10.5880/fidgeo.2020.012, to allow users to explore for themselves the various steps of this missing data replacement process in actual MISR L1B2 files.Background information:The Multi-angle Imaging SpectroRadiometer (MISR) is one of the five instruments hosted on- board the NASA Terra platform, launched on 18 December 1999. It features 9 cameras pointing at various angles along the track of the platform, each measuring the amount of solar radiation reflected by the Earth in 4 spectral bands. MISR started acquiring observations on 24 February 2000, and is still operating as of this writing, therefore providing 20 years of continuous global observations.One of the most basic data products generated by NASA after the initial pre-processing of MISR raw data is the Level 1B2 Georectified Radiance Product (GRP). This data product intermittently contains missing data that are often due to a temporary overload of the on- board computer. This process, which results in the dropping of lines of measurements while the computer resets itself, tends to occur especially when the MISR instrument is switched from the default Global Mode (GM) to the occasional Local Mode (LM) of operation, and conversely. As a result, those missing lines are unevenly distributed and tend to cluster around particular sites and dates.
This data publication provides access to (1) an archive of maps and statistics on MISR RCCM data products updated as described in Verstraete et al. (2020, https://doi.org/10.5194/essd-2019-77), (2) a user manual describing this archive, and (3) a large archive of standard (unprocessed) MISR data files that can be used in conjunction with the IDL software repository published on GitHub and available from https://github.com/mmverstraete (Verstraete et al., 2019, https://doi.org/10.5281/zenodo.3240018). The authors also make a self-contained, stand-alone version of that processing software available to all users, using the IDL Virtual Machine technology (which does not require an IDL license) from Verstraete et al., 2020: http://doi.org/10.5880/fidgeo.2020.008.(1) The compressed archive 'RCCM_Out.zip' contains all outputs produced in the course of generating the various Figures of the manuscript Verstraete et al. (2020).Once this archive is installed and uncompressed, 8 subdirectories named Pxxx-Oyyyyyy-Bzzz are created, where xxx, yyyyyy and zzz stand for the Path, Orbit and Block numbers, respectively. At a minimum, those directories contain a 'GM/RCCM' subdirectory that includes a collection of 75 text, graphics (maps in PNG format) and binary data files relative to the intermediary, final and ancillary results generated while preparing those Figures.The 3 subdirectories for Orbit 92981, as well as the one dedicated to Orbit 78010, contain a subdirectory labeled 'GM/RCCM__[cc]-[l1]-[l2]' instead, where [cc] indicates the camera whose data have been modified to evaluate the performance of the algorithms, and [l1] and [l2] indicate the first and last line that is artificially deemed to contain missing data: those subdirectories include collections of 93 text, graphics and binary data files; they include maps of the RCCM data product before and after this artificial modification.Two of those subdirectories (for Orbits 2111 and 78171) also contain a subdirectory 'GM/L1B2', which hosts a number of text and graphics (maps in PNG format) files obtained by plotting the top of atmosphere bidirectional reflectance measured by the MISR instrument. These images can be used to verify visually the state of the cloud cover in the corresponding cameras and spectral bands.Each map is accompanied by a similarly named text file providing the legend of the corresponding map. Those subdirectories also contain log files that report on the success rate of the replacement algorithm as well as accuracy of the replacement procedure, when some data are artificially removed.(2) The document 'RCCM_Out.pdf' provides the User Manual to install and explore the compressed archive 'RCCM_Out.zip'.(3) The compressed archive 'RCCM_input_68050.zip' contains MISR L1B2 GRP and RCCM data for the full Orbit 68050, acquired on 3 October 2012. This file includes data for a wide range of locations, from Russia to north-west Iran, central and eastern Iraq, Saudi Arabia, and many more countries along the eastern coast of the African continent. It is provided to allow users to analyze actual data with the software package mentioned above, without needing to download MISR data from the NASA ASDC web site.