OLA: Ocean Environment Study Using Lidar and AI

LIDAR PRODUCTS

Note: new data posted in June 2024.


Monthly NC files from CALIOP Data


To get these data, please click on the file name(s) that you have selected and save locally on your computer.

The nc files contain monthly averaged files for the indicated products.

Data Selection


   bbp_443_D.nc


bbp_443_N.nc

   chlor_a_D.ncchlor_a_N.nc
   Kd_490_D.ncKd_490_N.nc

   poc_D.nc

   pic_D.nc

poc_N.nc

pic_N.nc



lidar h5 file naming convention

 product_D/N.nc
 product = products derived from CALIOP
 D/N = Day or Night
 nc = NetCDF file type


Notes:

 The monthly CALIOP product is 1 by 1 degree and is stored in a 360 x 180 grid
 lat=-90+0.5:1:90-0.5;
 lon=-180+0.5:1:180-0.5;


Each nc file contains these variables:

 lon: Latitude

 lat: Longtitude

 time: days since 1985-01-01

 bbp_443/chlor_a/Kd_490/poc/pic: monthly averaged products


MATLAB reading codes:

calfile = 'bbp_443_D.nc';
varname = 'bbp_443';
caldata = ncread(calfile,varname);
lon = ncread(calfile,'lon');
lat = ncread(calfile,'lat');
time = ncread(calfile,'time');

T = datetime(time*3600*24,'ConvertFrom','epochtime','epoch', '1985-01-01');


Related works:

Zhang, Zhenhua, Siqi Zhang, Michael J. Behrenfeld, Peng Chen, Cédric Jamet, Paolo Di Girolamo, Davide Dionisi, Yongxiang Hu, Xiaomei Lu, Yuliang Pan, Minzhe Luo, Haiqing Huang, and Delu Pan. "Combining Deep Learning with Physical Parameters in Poc and Pic Inversion from Spaceborne Lidar Caliop." ISPRS Journal of Photogrammetry and Remote Sensing 212 (2024/06/01/ 2024): 193-211. https://dx.doi.org/10.1016/j.isprsjprs.2024.05.007.

Zhang, Zhenhua, Peng Chen, Cédric Jamet, Davide Dionisi, Yongxiang Hu, Xiaomei Lu, and Delu Pan. "Retrieving Bbp and Poc from Caliop: A Deep Neural Network Approach." Remote Sensing of Environment 287 (2023/03/15/ 2023): 113482. https://dx.doi.org/10.1016/j.rse.2023.113482.

Zhang, Zhenhua, Peng Chen, Chunyi Zhong, Congshuang Xie, Miao Sun, Siqi Zhang, Su Chen, and Danchen Wu. "Chlorophyll and Poc in Polar Regions Derived from Spaceborne Lidar." Frontiers in Marine Science 10 (2023). https://dx.doi.org/https://doi.org/10.3389/fmars.2023.1050087.

Zhang, Siqi, Peng Chen, Yongxiang Hu, Zhenhua Zhang, Cédric Jamet, Xiaomei Lu, Davide Dionisi, and Delu Pan. "Diurnal Global Ocean Surface Pco2 and Air–Sea Co2 Flux Reconstructed from Spaceborne Lidar Data." PNAS Nexus 3, no. 1 (2024): pgad432. Accessed 5/15/2024. https://dx.doi.org/10.1093/pnasnexus/pgad432.

Zhang, Siqi, Yan Bai, Xianqiang He, Zhiting Jiang, Teng Li, Fang Gong, Shujie Yu, and Delu Pan. "Spatial and Temporal Variations in Sea Surface Pco2 and Air-Sea Flux of Co2 in the Bering Sea Revealed by Satellite-Based Data During 2003–2019." Original Research, Frontiers in Marine Science 10 (2023). https://www.frontiersin.org/articles/10.3389/fmars.2023.1099916.