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PurpleAir Air Quality Sensor Manufacturer

The data submitter uploads the data file.

The data submitter crafts data files, using the specification provided on the website.

This is a free, web based utility for exploring both mobile and stationary data on a map. This is a community monitoring data display website, allowing community members to report air quality events and correlate them geographically with community air monitoring data. This collection of resources can assist organizations in rendering community air monitoring data. We provide here links and resources helpful for data analysis and visualization of community monitoring data. If you didn't find what you were looking for, please contact 3TIER Support for additional assistance.Air quality monitoring organizations have different data interpretation and visualization requirements.

Why are the long-term mean values of each data set so similar and why don’t they match the values I get when I download these data directly from the various global modeling centers?.

Doesn’t horizontal resolution matter? What about downscaling with weather models like WRF and MM5?.

Why do all the various datasets have different start and end times?.

I notice that sometimes ERA-I and NNRP-D disagree, by quite a bit, which one should I use?.

Why is ERA-I available everywhere but not NNRP-D?.

What happened to 3TIER’s Reference Wind Time Series Product?.

What were 3TIER's data validation procedures for the 5 km global wind dataset?.

Does 3TIER incorporate observational data?.How was the 5 km global wind dataset created?.How accurate are the Wind Prospecting Tools?.How do I change locations for individual tools?.Why do we show a +/- next to the annual value?.What does the Wind Speed Distribution Tool provide?.What does the Annual Mean Wind Speed Tool provide?.How do I interpret the graph provided by the Monthly Mean Wind Speed Tool?.