Search found 59 matches

by ASDC - cheyenne.e.land
Fri Mar 18, 2022 3:24 pm America/New_York
Forum: Questions/Comments
Question: Question about download MISR V23 aerosol
Replies: 2

Re: Question about download MISR V23 aerosol

Hello,

A subject matter expert has been notified and will get back with you as soon as possible. Thank you for your patience.

Regards,

ASDC User Services.
by ASDC - cheyenne.e.land
Wed Mar 16, 2022 9:26 am America/New_York
Forum: Questions/Comments
Question: ACCESS TO DATA CONTENT
Replies: 1

Re: ACCESS TO DATA CONTENT

Hello, Here is a sample of how to simply open CALIPSO file in HDF using MATLAB: %Tested with MATLAB R2021a import matlab.io.hdf4.* % Open the HDF4 File. FILE_NAME = 'CAL_LID_L2_VFM-ValStage1-V3-41.2021-11-29T23-32-39ZD.hdf'; SD_id = sd.start(FILE_NAME, 'rdonly'); If you would like to read and plot C...
by ASDC - cheyenne.e.land
Thu Mar 03, 2022 9:04 am America/New_York
Forum: Questions/Comments
Question: Data discrepency between CERES and ERA5
Replies: 2

Re: Data discrepency between CERES and ERA5

Hello,

Thank you for your interest in CERES. It's great to hear that your issue has been resolved. Please let us know if you have any more questions.

Regards,

ASDC User Services
by ASDC - cheyenne.e.land
Fri Feb 25, 2022 7:08 am America/New_York
Forum: Questions/Comments
Question: GEDI 'system response impulse' or 'return impulse response'
Replies: 4

Re: GEDI 'system response impulse' or 'return impulse response'

Hello,

They would recommend you use the transmit pulse (tx waveform) as the impulse response for deconvolution. If noise is an issue, then you could average several TX waveforms together or lowpass filter them to get a cleaner version.

Thanks
by ASDC - cheyenne.e.land
Fri Feb 18, 2022 12:18 pm America/New_York
Forum: Questions/Comments
Question: GEDI 'system response impulse' or 'return impulse response'
Replies: 4

Re: GEDI 'system response impulse' or 'return impulse response'

Hello, We have contacted someone from GEDI and they have stated that: The transmit pulse for each laser shot is the “impulse response” of GEDI for that channel/shot and is contained in the L1B data record. The transmit pulse is the system response to the transmitted laser pulse and is the narrowest ...
by ASDC - cheyenne.e.land
Tue Feb 15, 2022 9:53 am America/New_York
Forum: Questions/Comments
Question: ASDC Code Examples on GitHub
Replies: 0

ASDC Code Examples on GitHub

ASDC now has a repository under NASA’s Public GitHub Organization . Check out the code examples provided that will allow you to plot and visualize ASDC data using python. ASDC_GitHub.png Code examples include: Project Collection Description Image CALIPSO CALIPSO Lidar Level 1B profile data, V4-11 Pl...
by ASDC - cheyenne.e.land
Fri Feb 11, 2022 12:35 pm America/New_York
Forum: Questions/Comments
Question: ASDC Tools and Services
Replies: 1

ASDC Tools and Services

This page provides links to access tools and services that the ASDC offers for data downloading, reformatting, and visualization. These applications include: Data Downloading Tool Description Projects Available Format Direct Data Download Provides the ability to access and download all publicly avai...
by ASDC - cheyenne.e.land
Fri Jan 07, 2022 1:07 pm America/New_York
Forum: Questions/Comments
Question: HDF-EOS Tools and Information Center Code Examples
Replies: 0

HDF-EOS Tools and Information Center Code Examples

Hierarchal Data Format – Earth Observing Systems (HDF-EOS) is a standard file format designed to support and store data collected from Earth Observing System (EOS) satellites: Aqua, Aura and Terra. The HDF-EOS Tools and Information Center website provides information about HDF-EOS and about the tool...
by ASDC - cheyenne.e.land
Wed Dec 29, 2021 11:13 pm America/New_York
Forum: Questions/Comments
Question: Question about download MISR V23 aerosol
Replies: 6

Re: Question about download MISR V23 aerosol

Hello, 1. As you may know, you can use the Spatial Subset, the Temporal Subset and the Parameter Subset. However you can only use one MISR product at a time when using the Parameter Subset because not all MISR products have the same parameters. I am not sure why you are receiving all of the data whe...
by ASDC - cheyenne.e.land
Wed Dec 29, 2021 8:49 am America/New_York
Forum: Questions/Comments
Question: Question about download MISR V23 aerosol
Replies: 6

Re: Question about download MISR V23 aerosol

Hello,

We are still figuring out why you did not receive a data link but I was able to retrieve it.


Thank you for your patience.

Regards,

ASDC User Services