# A compendium of temperature and salinity profiles and discrete nutrients from selected NOAA programs in Alaska

## TL;DR

This paper introduces a new data collection of ocean temperature, salinity, and nutrients from Alaska waters, spanning nearly 50 years.

## Contribution

The new ACOD data compendium provides a quality-controlled, unified dataset from multiple NOAA programs in Alaska.

## Key findings

- The dataset includes 29,717 temperature and salinity profiles from 1974 to 2021.
- It also includes 7,016 nutrient profiles from 2001 to 2021 across 495 cruises.
- ACOD is archived at Dryad and will be updated annually or biennially.

## Abstract

To better understand ecosystem dynamics in the Gulf of Alaska, Bering Sea, and Chukchi Sea, researchers at the U.S. National Oceanic and Atmospheric Administration’s (NOAA’s) Pacific Marine Environmental Laboratory and Alaska Fisheries Science Center have been conducting hydrographic and biological surveys in Alaska waters for decades. This article describes a new data compendium (“ACOD”) that assembles data sets from select NOAA programs into a single-point-of-access quality-controlled product. Included are 29717 vertical profiles of temperature and salinity (1974–2021), and 7016 profiles of dissolved inorganic macronutrients (nitrate, nitrite, ammonium, orthosilicic acid, and phosphate) at discrete depths (2001–2021). This value-added product includes systematic quality control of metadata, salinity, and nutrient data – in addition to creating a single point of access for data from 495 cruises across a nearly 50-year time period. ACOD files are archived at the Dryad Research Data Repository and will include annual or biennial updates. File types include netCDF (profiles and nutrients) and csv (nutrients), and a table with metadata from each cruise.