Due to anonymous users overwhelming the Download Raw Data (Query Air Data) service, either accidentally or in an intentional denial of service, we are left with no option but to disallow anonymous access to the system. This began on the morning of Tuesday, January 15th and the system has been non-responsive since shortly thereafter. We apologize for any inconvenience in obtaining the data you need. Starting later today, January 17th, we will no longer allow anonymous queries. To request an account, please follow the instructions here: http://www.epa.gov/airdata/tas_Data_Mart_Registration.html#Data_Mart_Registration. As a reminder, you should never have more than 3 queries running at any given time. You should not consider the query "complete" until you have saved all resulting data to your local system. This is especially important if you are querying the system via a script.
↧