The IASI/Metop-B HCOOH ANNI v4 product

<p>This dataset comprises the version 4 of the HCOOH product retrieved from IASI/Metop-B between July 2022 and June 2023, using the Artificial Neural Network for IASI (ANNI) version 4 retrieval scheme. Each day is represented by a .nc file. For detailed information on the HCOOH product, please refer to Franco et al. (2018)&nbsp;<em>"A General Framework for Global Retrievals of Trace Gases From IASI: Application to Methanol, Formic Acid,&nbsp;and PAN"</em> (JGR, https://doi.org/10.1029/2018JD029633) and for a description of the ANNI v4 retrievals, please consult Clarisse et al. (2023) <em>"The IASI NH3 version 4 product: averaging kernels and improved consistency"</em> (AMT, <a href="https://doi.org/10.5194/amt-16-5009-2023">https://doi.org/10.5194/amt-16-5009-2023</a>). Prior to using this dataset, we recommend reaching out to the main developers Bruno Franco (<a href="mailto:bruno.franco@ulb.be">bruno.franco@ulb.be</a>) and Lieven Clarisse (<a href="mailto:lieven.clarisse@ulb.be">lieven.clarisse@ulb.be</a>) for guidance and information on more recent product versions.</p>