Update on Checking Status for NASA AppEEARS Data Requests

[anatarano]

In our second coding challenge, Vegetation, we request MODIS data using an API, which is authenticated by our NASA Earthdata account information. During yesterday's lecture, @eculler walked me through a few ways to check on the status of my data requests. I just wanted to share some updates here since it might be helpful for others.

💌 Email Notifications from "AppEEARS"

This is by far the most convenient way to determine the status of your data request. You first receive an email titled "AppEEARS cp-ndvi Request Received" from [email protected]. Once your request is fulfilled, you receive another email titled "AppEEARS cp-ndvi Request Complete" from the same email address.

⚠️ Note that if you change the download_key value from 'cp-ndvi' when calling the downloader, your email titles may be different. See below for code sample.

ndvi_downloader = eaapp.AppeearsDownloader(
    download_key='cp-ndvi',
    ea_dir=data_dir,
    product='MOD13Q1.061',
    layer='_250m_16_days_NDVI',
    start_date="07-01",
    end_date="07-31",
    recurring=True,
    year_range=[2018, 2023],
    polygon=cameron_peak_gdf
)

📑 Logs in Code

Yesterday in lecture, @eculler walked me through generating logs using the following code before calling the downloader.

import logging # Logging library import
logging.basicConfig(level=logging.DEBUG) # log redirection

During the lecture, the logs didn't have an output, which was surprising and weird. I am still not sure of what happened and if I will ever be able to reproduce what happened in lecture. But when I re-ran that cell today, the logs were very descriptive and showed that my status is pending, queued, and complete (see screenshot below). This is also super helpful for live information.

🕸 AppEEARS Website

@eculler also showed me how to access the different requests using the AppEEARS Explore page. There you can also see what data you requested, when, and its status. See screenshot below.

[nquarder]

Thank you @anatarano this is a very helpful resource!