This ReadMe.txt file was generated on 20240323 by Bickel, Valentin Tertius This ReadMe.txt file was modified on 20240430 by Bickel, Valentin Tertius This ReadMe.txt file was modified on 20240531 by Bickel, Valentin Tertius This ReadMe.txt file was modified on 20240805 by Bickel, Valentin Tertius This ReadMe.txt file was modified on 20250621 by Bickel, Valentin Tertius ------------------- GENERAL INFORMATION ------------------- 1. Title of dataset: A Global Dataset of Potential Chloride Deposits on Mars as Identified by TGO CaSSIS v1.1 2. Contributor information: Data creator Name: Bickel, Valentin Tertius Role/Function: Data creator Institution: Center for Space and Habitability, University of Bern Address: G6, Gesellschaftsstrasse 6, 3012 Bern, Switzerland Email: valentin.bickel@unibe.ch 3. Date of data collection: 2023-10-06 to 2025-06-21 4. Geographic location of data collection: Mars, ~80°N to ~80°S 5. Keywords describing the subject of your dataset: Mars; machine learning; chloride; habitability; climate; CaSSIS 6. Information about funding sources that supported the collection of the data: Funding agency name: Center for Space and Habitability, University of Bern ------------------- SHARING/ACCESS INFORMATION ------------------- 1. Licenses/restrictions placed on the data: Creative Commons Attribution Licence (CC-BY) 2. Links to publications that cite or use the data: https://doi.org/10.1038/s41597-024-03685-3 3. Recommended citation for this dataset: Bickel, V.T., Thomas, N., Pommerol, A., Tornabene, L., El-Maarry, R., Rangarajan, V. (2024). A Global Dataset of Potential Chloride Deposits on Mars as Identified by TGO CaSSIS. Nature Scientific Data 11 (845) (https://doi.org/10.1038/s41597-024-03685-3) --------------------- DATA & FILE OVERVIEW --------------------- 1. File List: Filename: Bickel_et_al_2024_chloride_CT03.csv File format: .csv Short description: File with meta information about all detections Filename: Bickel_et_al_2024_chloride_CT03.zip File format: .zip, .tif Short description: Zipped archive of .tif thumbnail images Filename: Bickel_et_al_2024_chloride_CT03_SHP.shp File format: .shp Short description: File with meta information about all detections (6 files: shp, dbf, qpj, prj, shx, cpg) Filename: Bickel_et_al_2024_chloride_CT03_v1.1.csv File format: .csv Short description: File with meta information about all detections; includes n = 282 new potential chloride deposit detections Filename: Bickel_et_al_2024_chloride_CT03_v1.1.zip File format: .zip, .tif Short description: Zipped archive of .tif thumbnail images; includes n = 282 new potential chloride deposit detections -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: Supervised convolutional neural network (Yolov5x), see associated publication for details 2. Methods for processing the data: Neural network deployed on Trace Gas Orbiter CaSSIS color NPB images, see associated publication for details 3. Describe any quality-assurance procedures performed on the data: Expert-based review of the dataset and spatial/geostatistical comparison with other chloride deposit datasets, see associated publication for details ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: Bickel_et_al_2024_chloride_CT03.csv ----------------------------------------- 1. Number of variables/columns: 23 2. Number of cases/rows: 965 3. Variable List: cassis_run_ID; cassis_ID; cassis_ID_short; date_time; center_LON 180d; center_LAT; chloride_diameter_meter; upper_left_x_img; upper_left_y_img; lower_right_x_img; lower_right_y_img; center_y; center_x; confidence; cassis_resolution; emission, incidence, phase, sub_solar_longitude, local_time, num_filters, type; thumbnail_ID 4. Variable description: internal detection ID; CaSSIS image ID; CaSSIS image ID short; observation Earth date and time; detection box center longitude (°, 180d); detection box center latitude (°); estimated chloride deposit diameter (not calibrated, meter); detection box upper left x (pixel); detection box upper left y (pixel); detection box lower right x (pixel); detection box lower right y (pixel); detection box center x (pixel); detection box center y (pixel); CNN confidence (%); CaSSIS image resolution (m/pixel); emission angle; solar incidence angle; solar phase angle; sub solar longitude; local Mars time; number of used filters; image type/mode; .tif thumbnail ID ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: Bickel_et_al_2024_chloride_CT03_v1.1.csv ----------------------------------------- 1. Number of variables/columns: 23 2. Number of cases/rows: 1247 3. Variable List: cassis_run_ID; cassis_ID; cassis_ID_short; date_time; center_LON 180d; center_LAT; chloride_diameter_meter; upper_left_x_img; upper_left_y_img; lower_right_x_img; lower_right_y_img; center_y; center_x; confidence; cassis_resolution; emission, incidence, phase, sub_solar_longitude, local_time, num_filters, type; thumbnail_ID 4. Variable description: internal detection ID; CaSSIS image ID; CaSSIS image ID short; observation Earth date and time; detection box center longitude (°, 180d); detection box center latitude (°); estimated chloride deposit diameter (not calibrated, meter); detection box upper left x (pixel); detection box upper left y (pixel); detection box lower right x (pixel); detection box lower right y (pixel); detection box center x (pixel); detection box center y (pixel); CNN confidence (%); CaSSIS image resolution (m/pixel); emission angle; solar incidence angle; solar phase angle; sub solar longitude; local Mars time; number of used filters; image type/mode; .tif thumbnail ID