TROPOMI annual mean upper tropospheric (UT) NO2 obtained with FRESCO-S (top) and ROCINN-CAL (bottom) cloud products

Data Description:
TROPOMI UT NO2 seasonal means for June 2019 to May 2020 obtained at 1° x 1° using cloud-slicing. Two data products are available, obtained with distinct cloud products. These are labelled FRESCO-S and ROCINN-CAL. Details of the cloud-slicing methodology, the difference between the 2 products and the causes for these differences, and comparison to the existing OMI cloud-sliced UT NO2 product are described in the publication detailed below.

Data Access:
Download links below are for compressed and zipped files of TROPOMI UT NO2 seasonal means:
FRESCO-S TROPOMI UT NO2 (compressed file size: 0.86 MB)
ROCINN-CAL TROPOMI UT NO2 (compressed file size: 1.5 MB)

Contact:
Please contact Eloise Marais for queries, additional information or input on best practices for using the data.

Reference:
E. A. Marais, J. F. Roberts, R. G. Ryan, H. Eskes, K. F. Boersma, S. Choi, J. Joiner, N. Abuhassan, A. Redondas, M. Grutter, A. Cede, L. Gomez, M. Navarro-Comas, New observations of upper tropospheric NO2 from TROPOMI, in review, Atmos. Meas. Techn. Disc., doi:10.5194/amt-2020-399. [PDF]