The difference 8 days makes: new ocean color radiometry data increase information in space and time — GES DISC: Goddard Earth Sciences, Data & Information Services Center. 8-day temporal resolution products in Giovanni include MODIS data, water quality related parameters The NASA Giovanni data system, hosted at the Goddard Earth Sciences Data and Information Services Center (GES DISC), provides a wide variety of mapped earth science data parameters from NASA missions and projects for the scientific community.
Many of these data parameters are provided as data averaged over monthly periods (though Giovanni does have some data sets with daily, 3-hour, and even hourly temporal resolution). For the past few years, the only ocean color radiometry data sets in Giovanni have been monthly averages – and these data sets do not always capture the remarkably varying patterns in the global oceans. Now, as part of the Water Quality for Coastal and Inland Waters Project (Zhongping Lee, University of Massachusetts – Boston, PI; James Acker, GES DISC/Wyle IS LLC, Co-I, and others), ocean color radiometry data at 8-day resolution is now available in Giovanni. Figure 1. Ocean Acidification (OA) (nsf12500)
Program Solicitation NSF 12-500 Replaces Document(s): NSF 10-530 Full Proposal Deadline(s) (due by 5 p.m. proposer's local time): January 06, 2012 Regular Proposals, Research Coordination Networks (RCN), and EArly-concept Grants for Exploratory Research (EAGER) proposals NSF-supported research from the Ocean Acidification (OA) solicitations is part of the Science, Engineering and Education for Sustainability (SEES) portfolio. Future OA calls for proposals are expected through FY2014. The initial NSF Ocean Acidification (OA) solicitation (NSF 10-530) resulted in twenty-one awards with total support amounting to $24,099,080. Revision Summary: Exploratory projects must follow the guidelines found in Chapter II.D. of the Grant Proposal Guide for submitting EAGER proposals, including contacting the cognizant program officer prior to submission.Community and capacity building efforts will only be considered as Research Coordination Networks (RCN).
Important Reminders General Information David L. A. The Earth Observation Network Group News. NASA's 'Salt of the Earth' Aquarius Reveals First Map NASA's new Aquarius instrument has produced its first global map of the salinity, or saltiness, of Earth's ocean surface, providing an early glimpse of the mission's anticipated discoveries. Its rich tapestry of global salinity patterns demonstrates Aquarius' ability to resolve large-scale salinity distribution features clearly and with sharp contrast.
The map provides a much better picture of ocean surface salinity than the Aquarius science team expected to have this early in the mission. The new map is a composite of the first two and a half weeks of data since Aquarius became operational on August 25. The map reveals predominantly well-known ocean salinity features, such as higher salinity in the subtropics, higher average salinity in the Atlantic Ocean compared to the Pacific and Indian Oceans, and lower salinity in rainy belts near the equator, in the northernmost Pacific Ocean and elsewhere. Image credit: NASA/GSFC/JPL-Caltech. Seasonal changes in ocean temperature, south-eastern New Zealand - Open ocean. Are ocean deserts getting larger? Phytoplankton in the Northeastern Arabian Sea exhibit seasonality | SPIE Newsroom.
The reversal of monsoon winds brings about changes in the circulation pattern of the Arabian Sea1–3 that can cause seasonality in the abundance of phytoplankton, micro-organisms that carry out photosynthesis and are an important part of marine food webs.4 Phytoplankton seasonality is also connected to altered coastal processes related to monsoons.5,6 During the southwest (SW) monsoon, the west coast of India experiences an upwelling of nutrient-rich water. Toward the end of the SW monsoon the offshore component of wind stress recedes, so upwelling does as well. During the northeast (NE) monsoon, surface currents reverse direction, moving northward along the coast carrying warm, low saline, low nutrient waters from the equatorial region. These environmental changes cause phytoplankton seasonality in the Arabian Sea along the west coast of India.
Figure 1. Location of sampling stations in the Arabian Sea Table 1. Table 2. Table 3. SIO 210: Introduction to Physical Oceanography. SIO 210: Introduction to Physical Oceanography Lynne Talley, Fall, 2013 Watch powerpoint presentation. Download powerpoint presentation. Download pdf of presentation. Reading Descriptive Physical Oceanography Chapter 11. Additional resources: Tomczak and Godfrey, chapters 11, 12 and skim 13 Reid, J. 1. Thermally direct circulation in the tropical atmosphere (like Walker cell and sea/land breeze).
In summer, land is warmer than ocean so surface wind is from ocean to land. Indian (Asian-Australian) monsoon: late summer conditions are strong air flow from the Arabian Sea northeastward into India ("Southwest monsoon"), accompanied by large precipitation over land. Figure. Other monsoon regions: Asia up through China and Japan is part of the same monsoon system ("Asian-Australian monsoon"). Figure. 2. The subtropical gyre's western boundary current is the Agulhas. Abyssal flow in the Indian Ocean is northward from the Antarctic since no bottom water is formed in the Indian Ocean. Study questions. Objective global ocean biogeographic provinces.