DAAC Home > Resources > News

News

High Latitude Annual Seasonal Snow Melt Onset from Passive Microwave Sensors

Submitted by ORNL DAAC Staff on 2021-07-15
Image Media
Image Media
Caption

Spatial extent of snowpack main melt onset dataset (MMOD) extending from the Russian Far East across Alaska into Canada's Northwest Territories and British Columbia. Source: Pan et al. (2021)

Body
This dataset provides the annual date of snowpack seasonal beginning melt across northwest Canada; Alaska, U.S.; and parts of far eastern Russia for 1988-2016.
Tags

Laboratory Analyzed Atmospheric Trace Gas and Isotope Measurements

Submitted by ORNL DAAC Staff on 2021-07-15
Image Media
Image Media
Caption

Collection locations of atmospheric carbon dioxide concentration from flasks collected by the Medusa system during ATom-4 flights in 2018.

Body
Laboratory analysis of atmospheric chemistry from flasks collected during airborne campaigns conducted by NASA's ATom Mission.
Tags

Oxygen and CO2 Measurements from the NCAR AO2 Instrument

Submitted by ORNL DAAC Staff on 2021-07-15
Image Media
Image Media
Caption

The AO2 instrument used to collect airborne Oxygen and Carbon Dioxide measurements on HIPPO flights from 2009 through 2011.

Body
This dataset provides in situ atmospheric oxygen and carbon dioxide concentrations measured during airborne campaigns conducted by NASA's ATom mission.
Tags

NASA Earthdata Article Highlights Methane Research

Submitted by ORNL DAAC Staff on 2021-06-29
Image Media
Image Media
Caption

The AVIRIS-NG instrument detected large methane plumes coming from Sunshine Canyon Landfill during its October 2016 overpass. The plumes are shown in a yellow to red gradient, with red representing higher concentrations of methane. Image credit: Cusworth et al. 2020.

Body
NASA's AVIRIS-NG instrument detected multiple massive methane plumes in California and much more.

Updated Global Mangrove Distribution and Characteristics Dataset

Submitted by ORNL DAAC Staff on 2021-06-21
Image Media
Image Media
Caption

Globally the tallest mangrove forests in coastal Gabon are estimated up to 63 m. The photo insets show locations where individual trees were measured in situ up to 65 m tall (Simard et al., 2019).

Body
An update to a dataset that characterizes the global distribution, biomass, and canopy height of mangrove-forested wetlands based on remotely sensed and field measurements.
Tags

Forest Carbon as a Function of Last Disturbance for Conterminous USA

Submitted by ORNL DAAC Staff on 2021-06-21
Image Media
Image Media
Caption

Estimated total ecosystem carbon for the northeast region of the U.S. for the years 1990 (left) and 2010 (right). The estimates were produced from an inventory-constrained version of the Carnegie-Ames-Stanford Approach (CASA) carbon cycle process model.

Body
This dataset provides estimates of forest carbon stocks and fluxes as a function of the number of years since the most recent disturbance for decadal benchmark years.
Tags