Update top level README

Author: brandonwkerns

README.md

@@ -1,2 +1,17 @@
-# arlid
-Atmospheric River Lifecycle Detection (ARLiD)
+# Atmospheric River Lifecycle Detection (ARLiD)
+
+This repository contains the code used for atmospheric river identification and tracking by Kerns and Chen (2025a,b).
+
+## Organization
+
+The code is divided into four directories:
+- **data_download:** Scripts for downloading ERA-5 data
+- **blob_detection:** Calculating the AR blobs and tropical moisture extent from the ERA-5 data
+- **scripts_for_lpt:** Python scripts used with the Large Scale Precipitation Tracking (LPT, https://github.com/uwincm/lpt-python-public) code for tracking the ARs in time
+- **figures:** Scripts used to generate figures for the manuscript
+
+## References
+
+Kerns, B. , and S. S. Chen, 2025: Global Atmospheric River Lifecycle Detection Using Integrated Water Vapor and Vapor Transport, Sci. Data, revised.
+
+Kerns, B. W. J., & Chen, S. (2025). ARLiD: Atmospheric River Lifecycle Detection (scidata_v1) [Data set]. In Nature Scientific Data (Version 1). Zenodo. https://doi.org/10.5281/zenodo.16787789