COVID-19 Update: Although development and operations are now being conducted according to the relevant social-distancing guidelines, work continues unabated on the TSS database and website with no significant impacts to progress.
The resubmitted Jan-Dec 2018 IMPROVE Aerosol data has been imported into the TSS database.
A new collection of Haze Trends charts for analyzing visibility trends at IMPROVE sites on the most impaired, clearest, and all days has been published.
The IMPROVE substituted data developed by Air Resource Specialists (ARS) have been added to the database and the RHR2 and Impairment datasets have been updated.
A new series of Haze Trends charts have been published to the Haze Analysis Tools under the "Trends" tab.
A new series of Anthro vs. Natural charts have been published to the Haze Analysis Tools under the "Anthro vs. Natural" tabs.
A new feature was added to the Haze Analysis Tools map to display site markers for individual networks and datasets using different shapes, colors, and sizes. A legend was also added.
A new full year (2017) of IMPROVE aerosol data, RHR2, and Impairment data has been added to the database.
Added context-sensitive help icons, popups, and glossary definitions to the Haze Analysis Tools.
An Updates page has been added which can be accessed from the News menu in the top navigation bar.
An Air Quality Glossary has been added which can be accessed from the Help menu in the top navigation bar.
A Find Events tool has been added which can be accessed from the News menu in the top navigation bar.
A Find Sites tool has been added that allows you to find monitoring sites by various search criteria.
Twelve new charts have been added to the draft Haze Analysis Tool, such as monthly, seasonal, and annual charts.
A suite of Visibility Summary tools have been added to provide graphical chart analyses of haze composition and trends in Class I Areas.
A Dataset Detail tool has been added to present detailed information and metadata about available monitoring datasets.
A draft RHR2 vs. Impairment tool has been created to present various charts comparing extinction data by both the RHR2 and Impairment metrics.
A Dataset Catalog tool has been created to help end users find relevant monitoring datasets based on a number of search criteria.