NADP News
NTN Network NH4 Map and Grid Corrections (2016 – 2017)
The concentration and deposition maps and grids have been updated in the NTN gradient maps page. Starting in November 2024, the original maps, reflecting data generated from an incorrect NH4 […] View
AMoN Data Processing Updates
OVERVIEW The AMON data export functionality (https://nadp.slh.wisc.edu/networks/ammonia-monitoring-network/) uses a dynamic script to code and grade data when it is downloaded. This means that samples that have been reviewed by the […] View
New Data Request Form
NADP is launching a new Data Request Form for requesting custom reports from NADP. Custom reports may involve chemistry or precipitation data not currently provided by the web pages, or […] View
Updates to Precipitation and Sample Data
Precipitation Data Adjustments In the past year, NADP has been making updates to how the electronic precipitation gauges are configured. Previously, almost all gauges were set to report precipitation data […] View
Change Log Published
NADP has released a change log which documents when published data has been updated. The change log can be found in either the NTN or MDN network page under the […] View
New NTN Sample ID# Format
In a continued effort to make more aspects of all NADP networks consistent, we updated the format of NTN sample ID numbers. Starting tomorrow, 3/1/2024, new NTN sample ID numbers […] View
NTN Aggregated Conductance Errors (2021 and 2022)
In November 2023, an error was discovered in the script used to calculate the monthly, seasonal, annual, and water year PWM values for conductance. The script was incorrectly multiplying the […] View
MDN Bottle Contamination and Samples Affected
MDN Bottle Contamination Issue In mid-November 2022, a contamination issue was discovered with the MDN sample collection bottles that had been in circulation since the end of August 2022. Once […] View
NTN Network NH4 Method Detection Limit Corrections (2016-2017)
In late 2022 it was recognized that the NH4 values appeared to be too high for the 2016 NTN network data. Investigation determined that the data was calculated with an […] View
MDN Preliminary Report Deposition Value Corrections
On the MDN preliminary reports that were sent out on 11/12/2021, there was a change in the weekly Hg Deposition values on both the sample reports and summary reports. An […] View