Josefino C Comiso
Biographic Data
| ID | 6818022 |
|---|---|
| NAME | Josefino C Comiso |
| GIVEN NAMES | Josefino C |
| FAMILY NAME | Comiso |
| SIGNATURE | COMISO J C |
| AFFILIATIONS | Goddard Space Flight Center |
| ORCID | 0000-0002-0875-7433 |
| VERIFIED | Yes |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 5 |
| AUTHOR COUNT | 7 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2009 |
| LATEST PUBLICATION YEAR | 2021 |
| H-INDEX | 1 |
Climate drivers of Arctic tundra variability and change using an indicators framework
This study applies an indicators framework to investigate climate drivers of tundra vegetation trends and variability over the 1982–2019 period. Previously known indicators relevant for tundra productivity (summer warmth index (SWI), coastal spring sea-ice (SI) area, coastal summer open-water (OW)) and three additional indicators (continentality, summer precipitation, and the Arctic Dipole (AD): second mode of sea level pressure variability) are …
Climate Change and Sea Ice
Global warming signals are observed in the atmosphere, land, ocean, and ice from multiple instrumental and paleoclimatic sources. Data indicate regional warming and changes in precipitation patterns. The heat content of the ocean up to 700 m in depth has increased significantly while the contrast between wet regions and dry regions over the oceans has increased over the past 60 years. Among the strongest signals of warming are those from polar re…
Climate Change and Sea Ice
Global warming signals are observed in the atmosphere, land, ocean, and ice from multiple instrumental and paleoclimatic sources. Data indicate regional warming and changes in precipitation patterns. The heat content of the ocean up to 700 m depth has increased significantly while the contrast between wet regions and dry regions over the oceans has increased over the past 60 years. Among the strongest signals of warming are those from polar regio…
Changing seasonality of panarctic tundra vegetation in relationship to climatic variables
Potential climate drivers of Arctic tundra vegetation productivity are investigated to understand recent greening and browning trends documented by maximum normalized difference vegetation index (NDVI) (MaxNDVI) and time-integrated NDVI (TI-NDVI) for 1982–2015. Over this period, summer sea ice has continued to decline while oceanic heat content has increased. The increases in summer warmth index (SWI) and NDVI have not been uniform over the satel…
Climate trends in the Arctic as observed from space
The Arctic is a region in transformation. Warming in the region has been amplified, as expected from ice-albedo feedback effects, with the rate of warming observed to be ∼0.60 ± 0.07°C/decade in the Arctic (>64°N) compared to ∼0.17°C/decade globally during the last three decades. This increase in surface temperature is manifested in all components of the cryosphere. In particular, the sea ice extent has been declining at the rate of ∼3.8%/decade,…
Circumpolar Arctic Tundra Vegetation Change Is Linked to Sea Ice Decline
Linkages between diminishing Arctic sea ice and changes in Arctic terrestrial ecosystems have not been previously demonstrated. Here, the authors use a newly available Arctic Normalized Difference Vegetation Index (NDVI) dataset (a measure of vegetation photosynthetic capacity) to document coherent temporal relationships between near-coastal sea ice, summer tundra land surface temperatures, and vegetation productivity. The authors find that, duri…
Spatial and temporal patterns of greenness on the Yamal Peninsula, Russia: Interactions of ecological and social factors affecting the Arctic normalized difference vegetation index
The causes of a greening trend detected in the Arctic using the normalized difference vegetation index (NDVI) are still poorly understood. Changes in NDVI are a result of multiple ecological and social factors that affect tundra net primary productivity. Here we use a 25 year time series of AVHRR-derived NDVI data (AVHRR: advanced very high resolution radiometer), climate analysis, a global geographic information database and ground-based studies…
Climate trends in the Arctic as observed from space
The Arctic is a region in transformation. Warming in the region has been amplified, as expected from ice-albedo feedback effects, with the rate of warming observed to be ∼0.60 ± 0.07°C/decade in the Arctic (>64°N) compared to ∼0.17°C/decade globally during the last three decades. This increase in surface temperature is manifested in all components of the cryosphere. In particular, the sea ice extent has been declining at the rate of ∼3.8%/decade,…
Spatial and temporal patterns of greenness on the Yamal Peninsula, Russia: Interactions of ecological and social factors affecting the Arctic normalized difference vegetation index
The causes of a greening trend detected in the Arctic using the normalized difference vegetation index (NDVI) are still poorly understood. Changes in NDVI are a result of multiple ecological and social factors that affect tundra net primary productivity. Here we use a 25 year time series of AVHRR-derived NDVI data (AVHRR: advanced very high resolution radiometer), climate analysis, a global geographic information database and ground-based studies…
Circumpolar Arctic Tundra Vegetation Change Is Linked to Sea Ice Decline
Linkages between diminishing Arctic sea ice and changes in Arctic terrestrial ecosystems have not been previously demonstrated. Here, the authors use a newly available Arctic Normalized Difference Vegetation Index (NDVI) dataset (a measure of vegetation photosynthetic capacity) to document coherent temporal relationships between near-coastal sea ice, summer tundra land surface temperatures, and vegetation productivity. The authors find that, duri…
Climate trends in the Arctic as observed from space
The Arctic is a region in transformation. Warming in the region has been amplified, as expected from ice-albedo feedback effects, with the rate of warming observed to be ∼0.60 ± 0.07°C/decade in the Arctic (>64°N) compared to ∼0.17°C/decade globally during the last three decades. This increase in surface temperature is manifested in all components of the cryosphere. In particular, the sea ice extent has been declining at the rate of ∼3.8%/decade,…
Climate Change and Sea Ice
Global warming signals are observed in the atmosphere, land, ocean, and ice from multiple instrumental and paleoclimatic sources. Data indicate regional warming and changes in precipitation patterns. The heat content of the ocean up to 700 m depth has increased significantly while the contrast between wet regions and dry regions over the oceans has increased over the past 60 years. Among the strongest signals of warming are those from polar regio…
Changing seasonality of panarctic tundra vegetation in relationship to climatic variables
Potential climate drivers of Arctic tundra vegetation productivity are investigated to understand recent greening and browning trends documented by maximum normalized difference vegetation index (NDVI) (MaxNDVI) and time-integrated NDVI (TI-NDVI) for 1982–2015. Over this period, summer sea ice has continued to decline while oceanic heat content has increased. The increases in summer warmth index (SWI) and NDVI have not been uniform over the satel…
Climate Change and Sea Ice
Global warming signals are observed in the atmosphere, land, ocean, and ice from multiple instrumental and paleoclimatic sources. Data indicate regional warming and changes in precipitation patterns. The heat content of the ocean up to 700 m in depth has increased significantly while the contrast between wet regions and dry regions over the oceans has increased over the past 60 years. Among the strongest signals of warming are those from polar re…
Climate drivers of Arctic tundra variability and change using an indicators framework
This study applies an indicators framework to investigate climate drivers of tundra vegetation trends and variability over the 1982–2019 period. Previously known indicators relevant for tundra productivity (summer warmth index (SWI), coastal spring sea-ice (SI) area, coastal summer open-water (OW)) and three additional indicators (continentality, summer precipitation, and the Arctic Dipole (AD): second mode of sea level pressure variability) are …
Arctic (7 works) · Climate change (7 works) · Climate change and permafrost (7 works) · Climatology (7 works) · Environmental Science (7 works) · Geography (7 works) · Physical geography (7 works) · Cryospheric studies and observations (6 works) · Meteorology (6 works) · Arctic and Antarctic ice dynamics (5 works)