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iBooks

NASA's Earth Observing System provides a variety of materials available for download. Feel free to choose a category below:

Understanding Earth: Our Ocean
PDF icon Understanding Earth: Our Ocean PDF (11 MB), Binary Data Understanding Earth: Our Ocean iBook (60 MB)

Viewed from space, Earth appears as a blue marble, as approximately 70% of Earth’s surface is covered by ocean water. The vast ocean holds roughly 97% of the planet’s water and represents 99% of the living space on Earth. NASA has been observing Earth’s ocean from space for more than 38 years, beginning with the launch of the first civilian oceanographic satellite, Seasat, on January 28, 1978. This brochure explains how NASA has the ability to observe and detect changes in the ocean (and on Earth as a whole) on a variety of spatial and temporal scales—ultimately positioning the Agency to improve life on our planet.

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Understanding Earth: What's Up with Precipitation?
PDF icon Understanding Earth: What's Up with Precipitation? PDF (6 MB), Binary Data Understanding Earth Whats Up with Precipitation-2.ibooks

Precipitation is any product of the condensation of atmospheric water vapor that falls quickly from a cloud. The main forms of precipitation include drizzle, rain, sleet, snow, grapple (soft hail or snow pellets), and hail. Today, scientists can measure precipitation directly—using ground-based instruments such as rain gauges—or indirectly—using remote sensing techniques (e.g., from radar systems, aircraft, and Earth-observing satellites). This brochure describes how satellite observations—often combined with other measurements taken on the ground or from aircraft—provide frequent estimates of precipitation at a global scale. Among other uses, precipitation datasets from NASA are used for forecasting tropical cyclones; monitoring soil moisture conditions and freshwater availability; and predicting flood and drought conditions, landslides, crop yields, and water-related illnesses.

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SAGE III on the International Space Station
PDF icon ISS-SAGE III Mission Brochure PDF (4 MB), Binary Data ISS-SAGE III iBook (36 MB)

NASA’s Stratospheric Aerosol and Gas Experiment (SAGE) family of remote-sensing-satellite instruments has long measured ozone (O3) concentrations, stratospheric aerosols, water vapor, and other trace gases that influence Earth’s atmosphere. Planned for launch in 2016, SAGE III on the International Space Station will continue the legacy of accurate SAGE measurements. This brochure provides details about the instrument, launch and installation, ground system and data, and more!

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CATS: Measuring Clouds and Aerosols from the ISS
PDF icon ISS-CATS_Final_508.pdf, Binary Data ISS_CATS.ibooks

In 2011 the International Space Station (ISS) NASA Research Office offered scientists at NASA’s Goddard Space Flight Center a mounting location onboard the space station for a new lidar instrument called the Clouds and Aerosol Transport System (CATS). Described in this brochure, CATS provides vertical profiles of cloud and aerosol properties at three wavelengths (1064, 532, and 355 nanometers). The CATS mission seeks to build on the CALIPSO data record, provide observational lidar data to improve research and operational modeling programs, and demonstrate new lidar retrievals of clouds and aerosols from space. These technologies and the science gained from the CATS mission will be used to design future missions that will study clouds and aerosols and their affects on Earth’s climate and air quality for years to come.

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ISS-Rapid Scatterometer (2014)
PDF icon ISS-RapidScat Mission Brochure (11.11 MB), Binary Data ISS-RapidScat.ibooks

Described in this brochure, NASA’s International Space Station Rapid Scatterometer, or ISS-RapidScat, is the first scientific instrument specifically created to observe Earth winds from the space station. Scheduled for launch in late 2014, the experimental mission will measure ocean-surface wind speeds and directions, providing data that are needed to support weather and marine forecasting—including tracking storms and hurricanes—and climate research. The space station’s unique orbit will allow ISS-RapidScat to make the first direct observations of how ocean winds vary over the course of the day.

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Orbiting Carbon Observatory 2 (2014)
PDF icon OCO-2MissionBrochure_final_508.pdf, Binary Data OCO2.ibooks

This brochure describes NASA's Orbiting Carbon Observatory 2 (OCO-2) mission. OCO-2 is the first NASA satellite dedicated to monitoring carbon dioxide, and it will do so with greater precision and detail than current instruments. Data from OCO-2 will help scientists understand where carbon dioxide is being emitted and removed from the atmosphere, subsequently allowing them to make projections of how Earth’s climate might respond to these changes in the future.

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Soil Moisture Active Passive (2014)
PDF icon PDF, Binary Data SMAP-Soil Moisture Active Passive.ibooks

The Soil Moisture Active Passive, or SMAP, mission (described in this brochure) is NASA’s first Earth-observing satellite mission designed to collect continuous global observations of surface soil moisture and freeze/thaw state every 2-3 days at 3 to 40 kilometer (~2 to 25 mile) spatial resolution. As suggested by the name “Active Passive,” SMAP will carry an active microwave radar and a passive microwave radiometer that will measure across a 1000-kilometer (~621-mile) wide swath. The ability to measure global soil moisture and its freeze/thaw state from space with unprecedented accuracy and spatial resolution will allow scientists to better understand the processes that link the Earth’s water, energy, and carbon cycles, as well as enhance the predictive skills of weather and climate models. In addition, scientists can use these data to develop improved flood prediction and drought monitoring capabilities. Societal benefits include improved water-resource management, agricultural productivity, and wildfire and landslide predictions.

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GPM Core Observatory (2014)
PDF icon GPM Mission Brochure PDF (5.5 MB), Binary Data GPM Mission Brochure iBook (94 MB)

The Global Precipitation Measurement (GPM) mission is an international partnership co-led by NASA and the Japan Aerospace Exploration Agency (JAXA). The mission centers on the deployment of the GPM Core Observatory and consists of a network, or constellation, of additional satellites that together will provide next-generation global observations of precipitation from space. In this brochure you will learn about the specifics of the GPM Core Observatory and its role in the GPM mission.

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Understanding Earth: Biodiversity and Ecological Forecasting
Binary Data Understanding Earth- Biodiversity & Ecological Forecasting.ibooks, PDF icon Understanding Earth: Biodiversity and Ecological Forecasting PDF (7MB)

Biological diversity, or biodiversity, refers to the variety of all life on Earth—on all levels, from genes to species, ecosystems, and biomes. Over the last several decades, however, research has shown that global biodiversity has been on the decline. For decades, satellite and airborne remote sensing instruments have been observing environmental changes that impact biodiversity. This brochure describes how satellite observations—often combined with other measurements taken on the ground or from aircraft—provide information relevant to the distribution of ecosystems and their resident species and how scientists use this information to understand patterns of biodiversity, how biodiversity is changing, the drivers of the changes, and to predict the impacts of environmental changes on biodiversity in the future.

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Understanding Earth: The Icy Arctic
PDF icon Icy Arctic Final_508.pdf, Binary Data Understanding Earth_The Icy Arctic.ibooks

Over the last decade, satellite data—often combined with data from other sources—have revealed that the Arctic is changing at rates faster than anywhere else on Earth. These changes are interrelated and have both long- and short-term effects on Earth’s land surfaces, oceans, and atmosphere, ultimately impacting the Earth’s climate system. To better understand the Arctic environment, scientists at NASA are working in collaboration with various experts from other federal agencies, universities, private companies, and not-for-profit organizations. This booklet—the third in the Understanding Earth series—explains how NASA keeps a close eye on the Arctic and how the changes taking place there are affecting you.

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